OSS! This must-have “OSS” Brazilian Jiu Jitsu (BJJ) Fighter jersey tank top fits like a well-loved favorite. High quality print makes it an ultimate statement shirt for years to come. This item has side seams to provide structural support. All bindings are the same fabric as the rest of the tank. Depending on the color, cotton, polyester, or rayon can appear. The word “OSS” was derived from the Japanese term ‘Onegai Shimasu’ which is a polite invitation like “Please, if you will”, or ‘Oshi Shinobu’ and roughly means “persevering when pushed” or “enduring under pressure”; values that are very much in line with the tradition of the most martial arts. OSS is now a term commonly used in Brazilian Jiu Jitsu to show respect and commitment, acknowledge a successful submission or takedown, or as a greeting or farewell. It’s often used at the beginning and end of a training session or fight. 

.: 100% Airlume combed and ring-spun cotton (fiber content may vary for different colors)

.: Extra Light fabric (3.8 oz/yd² (110 g/m²))
.: Retail fit
.: Tear-away label
.: Runs true to size

OSS!