I, KEY FEATURES Boa Closure allows for simple adjustment of fit with just a twist of the dial Composite F B I Frame provides a smooth ride and helps keep weight low Stability Plus Cuff is designed to give you improved confidence and support Get rid of every excuse to not go skating with the K2 Alexis 80 Boa Inline Skate Getting in is easy thanks to a Boa Closure System backed up with ankle and cuff straps And once youre in the Stability Plus Cuff gives you the support you need to build confidence and easily control the F B I Frame underneath And that frame uses composite construction to keep weight low and paired with the 80mm 80a wheels gives you a ride thats easy to control and surprisingly smooth SPECSWheel Durometer 80. keeping the young rider more balanced by being lower to the ground. : K2 Skate Alexis 80 Boa Inline Skate : Sports & Outdoors. : K2 Skate Alexis 80 Boa Inline Skate : Sports & Outdoors, Frame is a vibration-absorbing composite frame that is interlocked with the base. reliability and comfort to have a good time, High-performance wheels - 80mm wheels and ABEC 5 bearings are the perfect combination for safe speed with the right amount of spin, Durable FRAME - the F, flexibility, Stability plus cuff- provides the right amount of support, Boa system- tightens or loosens the boot with a twist of a knob. B.