Certified kit ideal for racing & sport use, also to be found on Spidi s Moto GP & Superbike riders. Biomechanic shoulders are composed by a flexible jointed external shell for sliding & soft inner material prepared for shock absorption & comfort of use. Weight is only 78 grams & shock absorbing performance are well above those required by 1621-1 law standard. These protector can be equipped inside any item with Biomechanic-ready inner pockets. Performance Vents Protection Biomechanic protectors