The Carve 2.0 Knee relay on our proven Xmatter padding for protection from the biggest hits, these updated knee protectors feature an elasticated top and bottom hem for the optimal fit, plus LoopLock closures. Constructed in our durable, sweatproof and highly breathable Aeromesh, theyre designed to see you through hot, steamy rides and sticky moments. The Xmatter protection is fully removable and replaceable.