If you can't shoot'em choke'em. Firearms are always the best first line of self-defense, but in case you're not carrying, hopefully you know Brazilian Jiu-Jitsu (BJJ). OSU or OSS is a greeting used amongst BJJ practitioners, which dates back to the Samurai. Short for Oshi Shinobu in Japanese, OSU translates to "Endure Under Pressure."

Your typical 100% cotton t-shirt (except for heather colors, which contain 10% polyester). Pre-shrunk to make sure your size is maintained throughout several washes, and a classic fit. • 100% jersey knit • Pre-shrunk • Seamless, double-need ⅞” collar • Taped neck and shoulders • Classic fit

Size guide