Low-Key Coverage. For peace of mind and protection from the scrapes that come from XC/trail riding, the Charge Knee has you knees covered. Pedal all day long with the Charge's comfortable, slide on fit. The Charge Knee is not rated for impact protection. Pedal On - Your knees are always in motion so comfort is key. That's why we strategically sewed the inner knee gusset to provide irritation free pedaling. No Scrapes Here - Non impact rated foam panels covered with stretch material with flat lock stiching to keep your XC / Trail rides comfortably abrasion free. Stay Put - Silicone gripper along inner top thigh opening plus a silicone patch at shin ensures that these pads stay in place no matter how hard you're pedaling. SPECIFICATION Construction - Butterfly mesh. Protection - Foam knee cover. Gripper - Silicone thigh gripper, silicone patch at shin. Other - Abrasian resistant knee cover.