Uniform | IBJJF
https://ibjjf.com/uniform/
The fabric should not be so thick or hard as to impede an opponent from gripping it. For juvenile, adult, master and senior divisions, a GI fashioned from woven fabric is mandatory. It is permitted to wear kimono with EVA or similar material inside the collar, if the measures of size and rigidity regulations provided in the IBJJF Rules Book are ...
DA: 31 PA: 78 MOZ Rank: 93