Shock Doctor Skate Insole Adaptive arch technology, adapts to any foot shape for perfect comfort; Reduces and protects you from over use injuries and provides natural shock absorption Air/FX top cover Mid-foot Shock Dome relaxes foot and helps relieve plantar fasciitis Light weight support cap cradles the foot to provide superior support, resists lateral torque and creates better balance Full foot shock absorbing foam provides cushion and support; Can reduce lower body fatigue and pain so that you can train/play longer and harder