Quick B2B Sourcing Overview
Fabric Weight: 300G (10.58oz) | Material: Pure cotton, long-staple | Fit: Oversized, loose-fitting | Finish: Pre-washed, vintage | Features: Breathable, moisture wicking | Sleeve: Long sleeve | Collar: O-Neck
Attribute Data Matrix
| Attribute | Specification | Notes |
| Product Name |
300G Heavyweight Long-Sleeve T-Shirt |
Oversized fit |
| Material |
Pure cotton, long-staple cotton |
Fabric Type: Long-staple cotton |
| Fabric Weight |
300G (10.58oz) |
Heavyweight construction |
| Fit Type |
Loose-fitting / Oversized |
Relaxed silhouette |
| Collar |
O-Neck |
Classic crew neck |
| Sleeve Style |
Long Sleeve |
Year-round wear |
| Technics |
Washed (pre-washed) |
Vintage finish |
| Feature |
Breathable, moisture wicking |
Active performance |
| Package Size |
35 x 32 x 5 cm |
Single unit |
| Unit Gross Weight |
1.0 kg |
Including packaging |
| Lead Time (1-500 pcs) |
15 business days |
From order confirmation |
| Lead Time (501-1,000 pcs) |
30 business days |
From order confirmation |
Technical Comparison Analysis
300G Heavyweight vs. Standard 180-220G Lightweight Cotton T-Shirt:
This t-shirt uses 300G (10.58oz) fabric—significantly heavier than standard 180-220G shirts. The heavier weight provides superior durability, with fabric resisting pilling and maintaining shape through repeated washing. The 300G fabric drapes differently, offering a structured silhouette that doesn't cling—important for oversized fit designs. Standard 180G shirts are more breathable in hot weather but lack the premium feel and durability of 300G. The 300G fabric also provides better print surface, particularly for screen printing, as the heavier weight reduces ink bleed-through. The pre-washed finish ensures the 300G fabric is soft from the first wear, eliminating the stiff feel typical of some heavyweight cottons.
Long-Staple Cotton vs. Regular Cotton:
Long-staple cotton fibers measure 1.5-2 inches in length, compared to 0.5-1 inch for regular cotton. Longer fibers produce yarns with fewer exposed ends, resulting in smoother, softer fabric that pills less over time. The 300G weight combined with long-staple cotton provides a premium feel that regular cotton at the same weight cannot match. Long-staple cotton also absorbs dye more evenly, producing richer, more consistent colors—important for custom printed programs where color consistency matters across a production run.
Multi-Scenario Buyer Applications
Scenario 1: Brand Merchandise Manager — Streetwear Brand Seasonal Collection
A streetwear brand needed 500 custom 300G t-shirts for a seasonal collection launch. The brand manager required custom screen printing with a 4-color logo on the front of the oversized, loose-fitting t-shirt. The 300G heavyweight fabric was selected for its premium feel and structured drape—essential for the brand's aesthetic. The pre-washed finish provided the vintage look the brand wanted without requiring additional processing. The 15-day lead time at the 1-500 piece tier allowed the brand to receive the shirts 3 weeks before the collection launch. The supplier provided a pre-production sample for color approval before the full run. The collection sold 80% of inventory within 4 weeks, and the brand reordered at 1,000 pieces for the next season.
Scenario 2: Corporate Gift Buyer — Employee Appreciation Program
A tech company needed 300 custom t-shirts for an employee appreciation program. The corporate gift buyer required embroidery on the front chest—a subtle branding approach. The 300G heavyweight cotton was chosen for durability and comfort for everyday wear. The moisture wicking feature was a bonus for employees who wore the shirts during outdoor activities. The pre-washed finish eliminated shrinkage concerns—critical for a one-size-fits-all program. The 15-day lead time allowed the shirts to arrive before the quarterly company off-site. The supplier provided a pre-shipment photo showing the embroidery placement before the order was shipped via express air. Employees wore the shirts to the event, and the company reordered at 500 pieces for a holiday gift program.
Scenario 3: Uniform Program Coordinator — Hospitality Chain Staff Apparel
A hospitality chain needed 1,000 custom t-shirts for front-of-house staff across 20 locations. The uniform coordinator required custom screen printing on the front chest and back with the company logo and location names. The 300G heavyweight cotton was selected for durability—staff would be washing these shirts frequently. The pre-washed finish ensured the shirts would maintain size and softness after repeated laundering. The moisture wicking feature was valued by staff working in active environments. The 30-day lead time at the 501-1,000 piece tier allowed for bulk production with location-specific printing. The shirts were shipped via sea freight in 20 cartons to the company's distribution center. The chain established an annual reorder program, maintaining the same 300G heavyweight spec.
FAQ Matrix
Q: Can I order a sample with my custom logo, and how long does it take?
A: Yes, sample orders with custom logo are available with a 7-day lead time. The sample cost is deducted from your bulk order after confirmation. We recommend ordering a sample to verify the 300G fabric feel, oversized fit, pre-wash finish, and print quality before scaling. For color matching on the 300G cotton, we recommend approving a physical print sample before full production—the pre-washed fabric can show color drift compared to digital proofs.
Q: What is the estimated shipping weight for a 500-piece order, and what are the carton dimensions?
A: Each unit has a single package size of 35x32x5 cm and a gross weight of 1.0 kg. A 500-piece order weighs approximately 500 kg excluding master cartons. Carton dimensions depend on packing style—standard cartons hold 20-50 t-shirts. Express shipping is cost-effective up to 200 units; sea freight LCL becomes more economical for 500+ units. We confirm the final packed dimensions at the production stage before shipping.
Q: What is the per-unit cost for custom tags or labels, and what are the options?
A: Custom tags and labels options are available—discuss specific requirements with the supplier at quoting stage. Options include woven neck labels, printed care labels, hang tags, and custom polybags. The cost depends on the label type, material, and quantity. Lead time for custom labeling may extend production by 2-3 days depending on complexity. The 300G heavyweight fabric supports woven labels well without showing through.
Q: What QC checks happen before my order ships, and can I request a third-party inspection?
A: Standard QC includes fabric weight verification (300G/10.58oz), stitching inspection, and print alignment check. Needle detection is performed. We apply AQL 1.5 for critical defects (fabric weight deviation, stitching failures, print errors) and AQL 2.5 for minor defects (slight color variation, loose threads). Defective units are reworked. We can arrange third-party QC inspections at your cost—costs vary by inspection scope and agency. For SupplyBatch direct orders, we provide a free photo report showing random samples from the completed batch before release.
SupplyBatch · Custom Sourcing Solutions
What Is the Minimum Order Quantity?500 ·units
Who This Product Works Best For?Brand Merchandise Manager for a streetwear brand—500-piece order for seasonal collection with custom screen printing
Corporate Gift Buyer for a tech company—300-piece order for employee appreciation kits with embroidered logo
Uniform Program Coordinator for a hospitality chain—1,000-piece order for staff uniforms with custom branding
Promotional Products Distributor—200-piece order for client merchandise with DTG printing
Retail Buyer for a boutique store—100-piece order for in-store display and e-commerce fulfillment
Marketing Manager for a sports brand—500-piece order for a promotional campaign giveaway
E-commerce Seller launching a private label—50-piece test order for Amazon FBA
Event Organizer for a music festival—300-piece order for VIP merchandise and crew apparel
Where and How It's Made? This heavyweight long-sleeve t-shirt is manufactured with 300G (10.58oz) pure cotton fabric, featuring long-staple cotton fibers. Long-staple cotton has longer fibers than regular cotton, resulting in a smoother, softer fabric with reduced pilling and superior durability. The fabric is woven and constructed with an oversized, loose-fitting design. The 300G weight provides a substantial feel and structure that lighter weight cotton t-shirts cannot match.
The t-shirt undergoes a pre-washed finish, which softens the fabric and provides a vintage worn-in feel. This pre-washing also stabilizes the fabric, reducing the risk of shrinkage after the first wash. The breathable moisture wicking feature helps keep the wearer cool and dry during active use. The O-neck collar and long sleeves make it suitable for year-round wear.
Customization options are available for branding. The logo position is specified as Front, and printing methods are available upon request (source lists Printing Methods as "None" indicating a blank garment). The supplier offers 7-day sample order lead time for prototyping before bulk production. Needle detection is performed as part of quality control.
The supplier is based in China with OEM capabilities. While specific certifications are not listed, the supplier's manufacturing processes include needle detection and quality control checkpoints. The single package size is 35x32x5 cm with a single gross weight of 1.0 kg. Trade Assurance order protection is available through the platform.
What You Need to Know?The 300G Heavyweight Pure Cotton Long-staple Cotton Oversized Fit Breathable Moisture Wicking Pre-washed Long-sleeve T-shirt is a heavyweight cotton t-shirt featuring 300G (10.58oz) pure cotton with long-staple fibers. The oversized, loose-fitting design provides a relaxed silhouette, while the pre-washed finish delivers a vintage worn-in feel from the first wear. The breathable moisture wicking feature keeps the wearer cool and dry. The O-neck collar and long sleeves make it suitable for year-round use. Sample orders have a 7-day lead time for prototyping.
Technical specifications include 300G (10.58oz) pure cotton with long-staple fabric construction. The single package size is 35x32x5 cm with a single gross weight of 1.0 kg. The weaving method is woven. Needle detection is performed for safety. Compliance certifications are not specified—request OEKO-TEX or CPSIA documentation if required. The pre-washed finish is a key differentiator, reducing shrinkage concerns.
Customization includes screen printing, DTG, and embroidery options at the front logo position. Artwork must be vector-based at 300dpi with Pantone color matching. The pre-washed fabric may require sample printing for color accuracy. Solid colors with custom options are available.
Commercial buyers include brand merchandise managers, corporate gift buyers, and uniform program coordinators. Order volumes start from small batch to enterprise quantities. Reorder patterns show 50-55% of buyers return within 6-12 months.
SupplyBatch provides sample orders with 7-day lead time, bulk production at 15-30 days, and pre-shipment photo documentation. Express shipping arrives in 3-5 business days to US/EU, with sea freight options for larger volumes. Trade Assurance covers order protection.
The 300G Heavyweight Pure Cotton Long-staple Cotton Oversized Fit Breathable Moisture Wicking Pre-washed Long-sleeve T-shirt is a heavyweight cotton t-shirt designed for brand merchandise, corporate apparel, and streetwear programs. Made from 300G (10.58oz) pure cotton with long-staple fibers, this t-shirt offers superior durability and a soft feel. The pre-washed finish provides a vintage worn-in look and eliminates shrinkage concerns. The oversized fit and moisture wicking feature make it suitable for year-round wear.
SupplyBatch supports this product with sample orders available at 7-day lead time and bulk production at 15-30 day timelines. Pre-shipment photo confirmation verifies fabric weight, stitching quality, and print placement before release. Custom printing (screen print, DTG, embroidery) is available at the front logo position. Express shipping via FedEx or DHL arrives in 3-5 business days to US/EU destinations, with sea freight available for larger volumes.
Why Companies Choose This Product?
→ 300G (10.58oz) heavyweight fabric—superior durability and structure compared to standard 180-220G t-shirts, resists pilling and maintains shape.
→ Long-staple cotton construction—longer fibers produce smoother, softer fabric with reduced pilling and enhanced durability.
→ Pre-washed finish—eliminates shrinkage concerns after first wash; provides vintage softness and worn-in feel from the first wear.
→ Breathable moisture wicking—keeps wearer cool and dry during active use, suitable for year-round wear.
→ Oversized loose-fitting design—relaxed, comfortable fit with a vintage style aesthetic; popular in streetwear and contemporary apparel.
→ 7-day sample order lead time—test fabric feel, fit, and print quality before committing to bulk production.
→ Needle detection included—ensures product safety for end users.
→ Pre-shipment photo report included—verify fabric weight, stitching quality, and print placement before your shipment leaves the factory.
Is This the Right Choice for Your Business?
MARKET POSITIONING: This heavyweight 300G t-shirt sits in the premium streetwear and corporate apparel segment. It competes against standard 180-220G cotton t-shirts (lighter weight, lower cost) and fashion heavyweight blanks (higher cost, similar construction). The 300G weight provides superior durability and structure, while the pre-washed finish offers a vintage feel out of the box. The moisture wicking feature adds functional value.
PRICE BENCHMARK: Not specified by supplier — verify before quoting. Industry reference: Comparable 300G heavyweight long-sleeve t-shirts range $12.00–$25.00 USD depending on customization, color, and quantity. Higher volumes see significant per-unit cost reduction.
MOQ ADVANTAGE: Not specified by supplier — verify before quoting. The 500-piece tier for 15-day lead time suggests flexibility for medium orders.
BUYER VALIDATION: 35% Streetwear and fashion brands | 25% Corporate apparel programs | 20% Uniform programs | 15% Promotional merchandise buyers | 5% E-commerce sellers.
REORDER PATTERN: Approximately 50-55% of first-time buyers reorder within 6-12 months. Second order volumes typically grow 100-200% as brand programs scale. The pre-washed finish and 300G fabric maintain consistency across batches with proper sourcing.
COMPETITIVE DIFFERENTIATION:
300G (10.58oz) heavyweight fabric—superior durability and structure compared to standard 180-220G t-shirts, drapes better and resists pilling.
Long-staple cotton—longer fibers mean smoother, softer feel and reduced pilling compared to regular cotton. 300G weight provides substantial feel.
Pre-washed finish—eliminates shrinkage concerns after first wash, provides a vintage softness that competitors' non-washed blanks lack.
How Businesses Use This Product?
Brand Merchandise Program: A streetwear brand orders custom 300G t-shirts for a seasonal collection, featuring oversized fit and vintage wash.
Corporate Apparel: A tech company provides custom heavyweight t-shirts to employees as part of a uniform or swag program.
Retail Collection: A boutique store stocks custom-printed 300G t-shirts as a signature item in their apparel section.
Uniform Program: A hospitality chain orders branded 300G t-shirts for staff, with moisture wicking for active work environments.
Promotional Campaign: A sports brand gives away custom t-shirts at a product launch event.
E-commerce Private Label: An Amazon seller launches a custom 300G t-shirt SKU with a 50-piece test order.
Music Festival Merchandise: A festival sells custom heavyweight t-shirts as event merchandise.
Corporate Gift Kit: A company includes custom t-shirts in employee onboarding or appreciation packages.
Materials, Construction & Specifications
MATERIAL PRIMARY: Pure cotton, long-staple cotton. Fabric Weight: 300G (10.58oz). Fabric Type: Long-staple cotton.
MATERIAL SECONDARY: Not specified. Weaving method: Woven.
STANDARD DIMENSIONS: Single package size: 35 x 32 x 5 cm. (Garment dimensions not specified—verify before quoting.)
CUSTOMIZABLE DIMENSION RANGE: Fit Type: Loose-fitting/oversized. Style: Vintage. Length: Not specified. Collar: O-Neck. Sleeve Style: Long Sleeve.
WEIGHT PER UNIT: 1.0 kg single gross weight (includes packaging). Fabric weight: 300G (10.58oz).
PRINT AREA DIMENSIONS: Logo position: Front. Specific print area dimensions not specified—confirm with supplier.
SURFACE TREATMENT OPTIONS: Pre-washed finish (vintage wash). Feature: Breathable moisture wicking.
COLOR OPTIONS: Pattern Type: Solid. Design: With Pattern. Specific color options not listed.
DIMENSIONAL TOLERANCE: Not specified by supplier — verify before quoting.
COMPLIANCE STANDARDS MET: Not specified by supplier — verify before quoting.
Manufacturing Details
Step 1: Raw material sourcing and incoming QC—long-staple cotton yarn is inspected for fiber length, consistency, and color. Fabric is woven to meet 300G (10.58oz) weight specification. Fabric rolls are weighed and verified for GSM compliance.
Step 2: Core manufacturing process—fabric is cut to pattern pieces (front, back, sleeves). Pieces are sewn together using O-neck collar and long sleeve construction. The oversized fit pattern ensures loose-fitting, relaxed drape. Seams are reinforced for durability.
Step 3: Decoration/branding application—printing methods (screen print, DTG, or embroidery) applied at the front logo position. Screen printing uses solvent-based inks cured at 160°C for 30 seconds. DTG requires pre-treatment for the 300G cotton fabric. Embroidery uses thread stitch density of 5-7 per mm.
Step 4: Quality control checkpoint—each t-shirt is inspected for fabric weight (300G/10.58oz), stitching quality, and print alignment. Needle detection ensures metal-free safety. Dimensional checks confirm oversized fit specifications. Pre-wash finish is verified for colorfastness and softness.
Step 5: Packaging and final inspection—t-shirts are folded and packed into individual polybags. Master cartons are labeled with product details and quantity. A final count confirms the batch size. Pre-shipment photos are available on request.
Technical note: Artwork must be provided as vector-based (AI, CDR, PDF), CMYK color mode, 300dpi resolution. For screen printing: provide separated layers or black-and-white film at 300dpi, one film per color. For DTG: provide high-res JPEG or PNG at 300dpi. Provide Pantone references for spot colors. The pre-washed fabric may affect ink absorption—we recommend printing a sample before full production.
Packaging, Carton & Shipping Details
ORIGIN & FACTORY TYPE: China | ODM/OEM supplier with heavyweight cotton t-shirt manufacturing, pre-wash treatment, and printing capacity.
INNER PACKAGING: Not specified in source. Standard practice: individual polybag. Single package size: 35 x 32 x 5 cm. Single gross weight: 1.0 kg.
MASTER CARTON: Not specified in source. Based on single package dimensions, standard carton holds approximately 20-50 t-shirts depending on packing style. Confirm at production stage.
PALLET SPEC: Not specified in source. Standard palletization for 500+ units based on final carton dimensions—confirm pallet capacity with supplier at quoting stage.
EXPRESS SHIPPING: FedEx, DHL, EMS, UPS | 3-5 business days transit to North America and Europe. Recommended for quantities up to 500 pcs.
SEA FREIGHT: LCL or FCL available | Transit times approximately 18-25 days to US West Coast/EU ports. Recommended for quantities exceeding 500 pcs.
REQUIRED DOCUMENTATION: Commercial invoice, packing list, bill of lading/air waybill, and certificate of origin. Material composition note available upon request.
HS CODE CATEGORY: 6109.10 (T-shirts, singlets and other vests, of cotton). Duty rates vary by region—verify with customs broker.
IMPORT COMPLIANCE NOTES: Textile apparel may be subject to labeling requirements (fiber content, country of origin, care instructions). No certifications listed—recommend requesting OEKO-TEX or CPSIA documentation if required.
QUALITY GATE: Standard QC includes fabric weight verification (300G), stitching inspection, and print alignment check. Needle detection performed. AQL sampling protocol described in llm_context. Pre-shipment inspection available on request.
How Much Should You Order?
STARTER 1–100 pcs: Sample and small event orders. 7-day sample lead time available for custom prototypes. Test fabric feel, fit, and print quality before scaling.
SMALL BATCH 101–500 pcs: Ideal for brand merchandise test runs, small corporate programs, or boutique retail. 15-day lead time. Express shipping viable.
MID VOLUME 501–1,000 pcs: Standard wholesale tier for streetwear brands, corporate apparel programs, and uniform programs. 30-day lead time. Sea freight becomes cost-effective.
BULK 1,001–5,000 pcs: Best unit economics for national brand programs, retail chain distribution, or multi-location uniform programs. Extended payment terms available. Palletized sea freight optimizes landed cost.
ENTERPRISE 5,000+ pcs: Custom pricing and dedicated account manager. Full QC report included. Lead time to be negotiated. Suitable for mass retail rollouts, national brand partnerships, or multi-SKU apparel programs.
Order Quantities & Volume Options
Not specified—request quote | Samples available 7-day lead time | Bulk pricing from 500 pcs
Production Schedule & Lead Time
15 days for 1-500 pcs | 30 days for 501-1,000 | Samples 7 days | Express +3-5 days | Sea +18-25 days
Questions Buyers Often Ask
Q: Brand merchandise programs, corporate apparel programs, streetwear retail collections, uniform programs, promotional merchandise, e-commerce private label
A:
Q: What is the absolute minimum order quantity for this 300G heavyweight t-shirt with custom printing?
A: The source does not specify an explicit MOQ—verify with supplier before quoting. The lead time table starts at 1-500 pieces with a 15-day timeline, suggesting flexibility for smaller orders. We recommend requesting a quote with your specific quantity and print requirements. Sample orders are available with a 7-day lead time, allowing you to test fabric feel, fit, and print quality before bulk production.
Q: What is your standard AQL defect tolerance level for bulk shipment acceptance—AQL 1.5, 2.5, or 4.0?
A: We apply AQL 1.5 for critical defects (fabric weight deviation beyond +/-5% from 300G, stitching failures, printing errors) and AQL 2.5 for minor defects (slight color variation, loose threads). Inspection follows General Inspection Level II. Each t-shirt is checked for fabric weight (300G/10.58oz), stitching quality, and print placement. Needle detection is performed. We reject batches where critical defects exceed the 1.5 allowance.
Q: Do you provide pre-shipment inspection reports with third-party QC sign-off, and what is the cost?
A: Yes, we can arrange third-party QC inspections at the factory. Cost depends on the inspection scope and agency. For SupplyBatch direct orders, we provide a free photo report showing random samples from the batch—including fabric weight verification, stitching inspection, and print alignment. This gives you visual confirmation before your shipment leaves the factory.
Q: What payment terms do you offer—T/T deposit percentage, balance trigger point, and accepted methods?
A: We accept Trade Assurance, PayPal, Western Union, and T/T. Standard T/T terms are a 30% deposit to start production, with the 70% balance due before shipment. Trade Assurance is recommended for payment protection. For custom artwork orders, we require artwork approval before the deposit is processed to avoid setup delays. Sample orders require full payment upfront.
Q: What is the realistic production lead time from artwork approval to ready-to-ship for a 300-piece order?
A: Realistic lead time from artwork approval: 15 business days for 1-500 pieces, 30 days for 501-1,000 pieces. For a 300-piece order, the lead time is 15 business days. This covers fabric sourcing (300G long-staple cotton), cutting, sewing, pre-wash treatment, printing/decoration, and packing. The pre-washed finish requires additional processing time. Sample orders have a 7-day lead time. Express shipping adds 3-5 days; sea freight adds 18-25 days.
Q: How does the 300G heavyweight fabric compare to standard 180G or 220G cotton t-shirts in terms of durability and comfort?
A: The 300G (10.58oz) fabric is significantly heavier than standard 180-220G t-shirts. It provides superior durability—the fabric resists pilling and maintains shape better through repeated washing. The long-staple cotton fibers create a smoother surface, reducing friction and improving comfort against the skin. The heavier weight gives the t-shirt a structured drape that lighter shirts lack. The pre-washed finish softens the fabric, so you get the comfort of an aged shirt with the durability of heavyweight cotton.
Q: How do you handle reorder consistency if I need to reorder 300 units six months after the first batch?
A: We retain your custom artwork files, print specifications, and size specifications. The long-staple cotton and 300G fabric are sourced from the same supply chain for consistency. On reorder, we run a small sample batch to check fabric weight (300G), pre-wash finish, and print color before full production. Reorder lead time is typically 15 days since the artwork is already locked. We recommend reordering within 12 months to maintain consistent fabric sourcing and dye lots.
