Perfect for the fitness enthusiast comes the K2 F.i.t. 90 Boa Inline Skates. The F.i.t. 90 Boa gives skaters a custom, precision fit with the ability to make adjustments on the fly and a D.c. aluminum frame that gives skaters a solid base while housing four 90mm wheels that will provide a smooth, comfortable roll. The Boa fit system on these skates lets you dial in a perfect fit with the quick turn of the Boa dial. This skate is super comfortable thanks to the K2 Original softboot that provides skaters with a well-rounded skate that makes for an enjoyable experience.