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."

This thick cotton t-shirt makes for a go-to wardrobe staple! It's comfortable, soft, and its tubular construction means it's less fitted.

• 100% ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.5 oz (153 g/m2)
• Pre-shrunk
• Shoulder-to-shoulder taping
• Double stitched sleeves and bottom hem

Size guide