The Knee-Sleeve Dermis A is a lightweight, slim-line bike pad that protects against impact and scrapes on BMX and pump tracks. The Lycra sleeve features groundbreaking technology developed by TSG: Strategically placed PU Powerband stripes, inspired by kinesiology tape, add strength to the lightweight material and significantly reduces movement. This means that the sleeve is not only well ventilated for all day comfort but is also secure and is uniquely packable. The protective qualities of this consist of an ergonomic soft-shell pad with tough stretch facing: Packable protection for when easy rides turn hard.