The Photon Boa® boot is for those who wish to dial-in comfort and fit to the precise click of the Boa? Coiler closure system. Hard chargers who prefer responsiveness will appreciate the cranked-up power of Lockdown Lacing, which increases heel hold and customization with three distinct adjustment zones. Get the traction required for hiking into the sidecountry with the Vibram® EcoStep™ rubber outsole backed by B3 Gel cushioning. Sleeping Bag heat-reflective foil brings it all together by harnessing your body’s warmth to keep you comfortable.