Choose by product intent
A 320 GSM hoodie is generally heavier and more structured than a comparable 280 GSM hoodie, but GSM alone does not determine quality. Fibre, knit density, brushing, yarn, finishing and pattern can make equal-weight fabrics behave differently.
Choose 280 GSM for easier layering and a wider climate range. Choose 320 GSM for a denser hand and stronger silhouette. Always approve the exact fabric and garment sample.
Wear experience
A well-developed 280 GSM fleece can feel substantial without becoming bulky. It suits transitional weather, active styling and shipping-sensitive programs. A 320 GSM construction can deliver more warmth and visual weight.
Comfort also depends on the inside finish. Brushed fleece differs from French terry, while polyester content changes recovery, drying and surface appearance.
Pattern and sewing implications
Heavier fabric increases seam bulk around the hood, pocket, cuff and hem. Needle, thread, seam allowance and reinforcement may need adjustment. Hood geometry and neckline support become more important.
Rib must recover strongly enough to balance the body. Fit approval in a lighter substitute can be misleading, so bulk sampling should use the intended fabric.
Decoration and approval
Smooth stable surfaces generally support clean printing, while fluffy surfaces may need different preparation. Embroidery needs suitable backing and tension to prevent distortion.
Compare swatches for composition, weight tolerance, stretch, recovery, colour and finish, then compare garments for drape, hood balance, seam bulk and wash response. Record the approved fabric code on the order.
280 GSM and 320 GSM at a glance
| Point | 280 GSM | 320 GSM |
|---|---|---|
| Feel | Mid-weight and adaptable | Heavier and denser |
| Silhouette | More fluid | More structured |
| Climate | Transitional layering | Cooler weather |
| Sewing | Lower seam bulk | Closer bulk control |
| Decision | Approve real sample | Approve real sample |
Frequently asked questions
Is 320 GSM always warmer?
Usually, but composition and inner finish also matter.
Which is best for streetwear?
Both work: use 320 GSM for density and 280 GSM for versatile layering.
Can GSM vary?
Yes. Agree on a measurable tolerance and approval method.