Custom 320GSM Heavyweight Cotton Crew Neck Sweatshirt Manufacturer - OEM Bulk Supply

320GSM Heavyweight Crew Neck Sweatshirt — Structure You Can Feel in the Box

At 320GSM the fabric stops behaving like a basic knit and starts behaving like outerwear. This heavyweight crew neck sweatshirt keeps a defined shoulder line, stands away from the body instead of clinging, and photographs with visible weight — the reason streetwear and premium basics brands in the US keep coming back to 320GSM as their hero weight.

Built for bulk programmes

• 320GSM heavy cotton — dense knit, low transparency, holds silhouette after washing
• Reinforced crew neck — ribbed collar with taped seams so the neckline does not stretch out
• Twin-needle cuffs and hem — designed for repeated industrial washing in resale and rental programmes
• Custom neck label, care label, hang tag and packaging bag — full private label from 50 pcs
• CPSC-compliant construction available for US retail and e-commerce channels

Specifications

Weight, wash and colour control

Heavyweight cotton shifts slightly during dyeing and washing. We pre-shrink and stabilise every 320GSM lot, then confirm GSM on a cut sample before bulk sewing, so the crew neck sweatshirt you approve is the crew neck sweatshirt you receive at 5,000 pcs.

FAQ

Q: Is 320GSM too heavy for retail?
 A: It is our most requested premium weight for autumn/winter basics and streetwear. Brands that sell all year usually stock 240GSM for spring and 320GSM for autumn.

Q: Can you match my existing 320GSM reference sample? 

A: Yes. Send the reference garment; we reverse-engineer the GSM, yarn count, rib width and measurements, then send you a matched counter sample.

Q: Do you offer plus-size grading on this weight? 

A: Yes, up to 5XL, with grade rules agreed before sampling.