The fit. 80 BOA® is quickly becoming a classic in the K2 fitness category. These skates offer the all-day comfort of the K2 Original Softboot® paired with the proven BOA Fit System, giving skaters the ability to dial in a precision fit and make adjustments on the fly. The Stability Plus Cuff provides much-needed support for those intense skating sessions and the F.B.I. the frame dampens road vibrations to allow skaters to ride smoothly and stably.