Rollerblade Men's Crossfire 100 Skate Crossfire True Wrap shell is supportive comfortable and highly maneuverable Precision 5 Star Fit liner system comfortable and highly breathable Ratchet micro adjust upper cuff and Velcro power strap with lower lacing system Performance Aluminum 3x100 1x90 for the best maneuverability while preserving the speed of a 100mm set up Spiral HP 100mm/84A and 1 Active 90mm wheels with super fast SG9 Bearings