Shell: High Resistant Polypropylene
Liner: Perfect Fitted Liner
Cuff: High Resistant Polypropylene
Locking: Safety lock buckle and 45 degree ratchet ankle buckle
Frame: 6000 Series High Quality Aluminan
Bearings: ABEC5
Wheels: * 36-38 : 4x76mm * 39-45 : 4x80mm 85A Round profile Polyurethane Wheels