" Fit & Design: Reinforced XL Shell & Cuff - Exceptional lateral support and flex without performance compromise Comfort Liner-Padded liner and Double-Wrap closure system prevents larger-size foot fatigue Technology: Extruded Aluminum Frame - Rigid, stable 330mm/13" frame provides excellent power transfer with superior durability, response and control Additional Details: Larger Sizes: 14-17.5 - Created exclusively for athletes with larger feet Rollerblade Performance Wheels- 90mm wheels and SG5 bearings for better wear and added speed