Practical, no-fluff guides written from the factory floor. After years of producing countless Gis, rash guards, and academy kits, we share what we actually know about fabric, fit, and IBJJF rules — so academies and athletes can make better choices.
What GSM actually means, and how 380, 450, and 500 GSM pearl weave compare on feel, durability, climate, and IBJJF legality — plus which weight to pick for your training.
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