Top-of-the-line tech to the simple, skate-inspired upper, starting with the lightning-fast Dual Zone BOA® Fit System equipped with our patent-pending SUPERLOCK heel harness to eliminate heel slipping and deliver a more responsive ride. And this year we made further upgrades by using our super-responsive R2 liner with the extra warmth of PrimaLoft® insulation. Simply put, the Phase Boa® Pro Step On® is one of our most advanced women’s boots ever.
