Presenting the enigmatic Unknown Koi Board Shorts, a striking addition to our collection of grappling shorts. These shorts integrate the latest advancements in grappling short technology, revolutionizing the realm of comfort and performance. With an unwavering emphasis on exceptional moisture-wicking and rapid drying capabilities, it establishes a fresh benchmark for durability. Staying true to the core tenets of Progress gear, the Unknown Koi exemplifies meticulous craftsmanship and boldly embodies the iconic Progress Jiu-Jitsu aesthetic, distinguished by its unparalleled attention to detail.

A flexible but slightly smaller fit than our regular board shorts. If you've got chunky legs we recommend sizing up slightly. Unless you're looking for that short shorts look of course.

We all train BJJ at Progress and we know what you expect when you buy board shorts from us: long lasting quality, comfort and style. We can say from experience, our board shorts are the real deal and the real customer reviews only back us up. If you ever have any (rare) issue with your Progress rashguards, please get in touch with us by e-mail support@progressjj.co.uk or on social media @progressjj and we'll do our best to fix any issues you have. That's a promise!

Although all our shorts now have anti-bobble technology, we always recommend washing your Progress shorts on a cold wash. If you have to wash hot, please do not exceed 30 degree.