Stan's - Tubeless Sealant Size:1L The K4 Knee Brace has

The K4 Knee Brace has been certified as a medical device to help prevent leg and knee injuries such as ACL

When not in use

waterproof membrane that pairs nicely with the micro-perforated footbed for improved air circulation

Donning a 33% increase from the original Sting

ALUMINIUM MODEL "HARD ROCK"

Stan's - Tubeless Sealant Size:1L The K4 Knee Brace hasThe first tubeless sealant in the world, formulated by our founder Stan in 2001 and still the number one choice of riders today. Recommended for all around use, compatible with all tubeless road, gravel, and mountain bike tires The Original formula is the best choice for providing reliable puncture sealant performance over a 2 7 month period, however arid conditions may require more frequent monitoring of liquid sealant levels. Anti freezing agents