The largest advancement in ski boots in sixty years, K2 Skis has teamed up with the minds at BOA Fit System to introduce the all-new Anthem BOA collection, a boot collection that has always prioritized performance. Introducing the biggest advancement in ski boots in over sixty years -- K2 teamed up with BOA Fit Systems to craft the all-new Anthem BOA collection. With performance in mind, this collection delivers the ultimate micro-adjustable fit with hard-charging capability.