Go Next Level with the Terra Knee Elbow Guards, G-Form's first product using all-new eco-friendly technology; RE ZRO. RE ZRO is G-Form's all-new impact protection that is fully biodegradable and 100% recyclable. Terra's RE ZRO pad is pre-curved, thin, flexible, strong, and certified at CE EN1621-1 Level 1 protection. The sleeve features an abrasion-resistant covering, mesh cutouts for breathability, and a wide, silicone gripper to keep the guards in place. The removable RE ZRO pad is hand-washable, while the fabric sleeve is machine-washable. G-Form products powered by RE ZRO are designed with both the rider and the environment in mind, so you can Go Next Level!