The Roller Derby Alpha 1 is the pinnacle of quad roller skate design. Featuring a Monocoque chassis for the very best skating experience and customisation this skate also has a Twister Power alignment wheel set up. Features: Fully Padded Mens Speed Boot Design with Full Suede Liner Black with Grey Trim Full Lace System Closure Monocoque Chassis Frame Twister Power Alignment Wheels, 65mm & 70mm 698 Micro Bearings Roller Derby Alpha Skates are available in Sizes - UK6 to UK11 We recommend you order one size up from your normal shoe size.