The OSS BJJ T-shirt is for practitioners who know what it means and mean it when they say it. OSS is the word that means all of it at once: acknowledgment, encouragement, respect, and the particular energy of a training hall that takes the art seriously. You hear it at the beginning of class, at the end of rounds, and when someone finally taps after a long struggle. It covers a lot of ground in three letters.For practitioners who know what it means and mean it when they say it.A great BJJ birthday gift for the white belt in your life who is still figuring out the game and loving every round of it. The shirt: Gildan Softstyle 64000, 100% ring-spun cotton, 4.5 oz. Lightweight and soft. No side seams, ribbed collar that won't curl, shoulder tape to keep the back from stretching. Built for daily wear and repeated washing.The print: Direct-to-Garment (DTG), not a transfer, not a sticker. Wash cold, tumble dry low. The print holds.Sizing: Runs true to size. Chest width: S 18" / M 20" / L 22" / XL 24" / 2XL 26" Who it's for White and blue belts still figuring out the game — and loving it White belts in the early stages of their jiu-jitsu journey Anyone looking for a BJJ gift that actually makes sense