Understanding GSM: Choosing the Right Fabric Weight

When sourcing fabrics for your clothing line, one of the most critical specifications you'll encounter is GSM — Grams per Square Meter. Understanding GSM is essential to choosing the right material for your product and your customer. ## What is GSM? GSM measures the density or weight of a fabric. A higher GSM means a heavier, thicker fabric, while a lower GSM indicates something lighter and more breathable. Here's a quick reference: - **80–120 GSM** — Lightweight t-shirts, summer shirts, inner liners - **150–200 GSM** — Standard t-shirts, polos, everyday essentials - **220–280 GSM** — Premium heavyweight tees, structured sweatshirts - **300–450 GSM** — Hoodies, joggers, outerwear, winter blankets ## Why It Matters for Streetwear The streetwear market increasingly demands "heavyweight" garments. Consumers associate higher GSM with quality and durability. A 300 GSM hoodie simply feels more premium in hand than a 220 GSM version — and your customers notice. ## Our Recommendation For most premium streetwear collections, we recommend 280–320 GSM for hoodies and 220–260 GSM for tees. This hits the sweet spot between comfort, durability, and perceived quality. Reach out to our team at RCI to request fabric swatches at your preferred GSM range.