What is GSM?

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What is GSM? Understanding Fabric Weight and Quality

If you're into streetwear or high-quality clothing, you've probably seen GSM mentioned on product tags. But what does it actually mean? GSM stands for grams per square meter, and it measures the weight and density of fabric. The higher the GSM, the thicker, heavier, and more durable the fabric is. Let’s break it down and see why it matters.

Higher GSM = Higher Quality

A common rule in fabric production is that higher GSM fabrics tend to be higher quality. While not the only factor, a heavier fabric usually means it’s more durable, feels premium, and holds up better over time. Here’s a quick guide to GSM ranges:

TEES

• 100-150 GSM – Lightweight (think thin T-shirts or summer wear)

• 160-200 GSM – Standard weight (everyday tees)

• 220+ GSM – Heavyweight (thicker tees, premium streetwear)

For streetwear brands, heavyweight cotton tees (220-300 GSM) are preferred for their durability and structured look, making them a staple in high-end fashion.

Cotton Over Polyester: The Better Choice

When choosing fabric, cotton beats polyester in terms of comfort and breathability. Cotton is natural, soft, and allows airflow, keeping you cool in the summer and warm in the winter. Polyester, on the other hand, is synthetic and often traps heat, making it less comfortable for all-day wear.

Additionally, heavyweight cotton garments tend to age better than polyester, developing a unique patina over time rather than pilling or losing shape. This is why most premium streetwear brands opt for 100% cotton for a luxury feel.

Heavyweight Fabric Feels Nicer to Wear

If you've ever worn a heavyweight hoodie or T-shirt, you know the difference. A thicker fabric drapes better, holds its shape, and just feels premium. Unlike thinner materials that cling or wrinkle easily, heavyweight fabrics provide a structured and stylish look.

For streetwear lovers, heavier garments give off a bold, high-end aesthetic, making your outfit feel more elevated and put-together. Plus, they last much longer, giving you more wear for your investment.

Final Thoughts

GSM is an important factor when choosing high-quality streetwear. Higher GSM fabrics mean better durability, better structure, and a more premium feel. Cotton remains the best choice for breathability and comfort, while heavyweight garments give your outfits a luxury edge.

Next time you shop for streetwear, check the GSM—it might just be the key to upgrading your wardrobe!