Cow nappa leather 1.3 mm thick, leather stretch is backed with Kevlar and perforated, grip strip on the knee, additional metal protectors in the shoulder, elbow and knee area, integrated sanding pad on the elbow (replaceable)? with Kevlar insert for reinforcement, preparation for a hydration system, SAS-TEC protectors in the shoulder, elbow, knee and shin, hip protector made of PE, removable functional overall with carbon fibers, Keprotec? Inserts in the arm, thigh and lower leg area with safety seams in all exposed areas, back, side, shoulder and knee stretch, double buttocks, plastic knee slider model Dropper included, AIRBAG COMPATIBLE