Axial AX2 Air Elbow / Knee Armor Add a layer of comfortable protection to your Jacket with the AXIAL's AX2 Air Elbow / Knee Armor. Designed for protection while allowing the rider more flexibility with ventilation, creating the perfect day of comfortable riding. The ventilated, hyper elastic injected polymer is thin and comfortable yet highly protective. Features the most ventilation and thinnest profile from AXIAL's CE Level 2 armor. Fits most Bilt, Sedici and Street & Steel brand jacket or pants, and several other brands! Features Ventilated hyper elastic injected PU polymer Lightweight, ergonomic design Impact energy is evenly dispersed Thinner and more well ventilated than AX1 63 more ventilation than AX2 CE Level 2 certified / Meets the requirements of CE Norm EN 1621-1 2012 Level 2 Dimensions: 7.12 x 4.8 x .3 Sold as a pair