Hoka One One Challenger 8 GORE-TEX is a waterproof road-to-trail running shoe built for wet and mixed conditions. It pairs GORE-TEX Invisible Fit protection with extra midsole foam for a cushioned, versatile ride. Key attributes: Blue | Washed Blue | Cement | Mesh and synthetic | Waterproof | Cushioned ride | Reliable road-to-trail traction | GORE-TEX Invisible Fit membrane | Enhanced foam midsole | Protective toe bumper | Multidirectional lug outsole | Toe bumper | Padded collar and tongue | Dimensions & fit: Improved fit | Composition & care: Upper: Mesh and synthetic | Membrane: GORE-TEX Invisible Fit | Midsole: EVA foam | Outsole: Rubber