Certified kit ideal for racing & sports, also found on Spidi s Moto GP & Superbike riders. Biomechanical elbow protectors are composed of a flexible articulated outer shell & soft inner material for shock absorption & comfort. Weight is only 109 grams & shock absorbing performance is well above that required by 1621-1 standard. These protectors can be equipped with biomechanical-capable inner pockets in each article.