Continuing as the Trail Clifton, the Hoka One One Challenger ATR 4 trail running shoes feature a truly sleek, breathable, and cushioned ride made for avid trail-goers. These light and fast shoes include a multi-lugged outsole spreading wider across the forefoot, providing superior traction on the uneven ground that youll find on more aggressive trails. This update features a more durable upper construction specifically around the areas that need it most. Upper: Speedframe Construction and 3D Puff Print Frame for lightweight, midfoot support. Padded tongue and heel collar enhance comfort. Flat laces reduce irritation. Midsole: Oversized EVA midsole provides signature HOKA cushioning. Early-Stage Meta-Rocker midsole is designed to encourage a smoother ride, and a faster transition to the forefoot. Outsole: Podular outsole design provides stability on uneven terrain. 4mm lugs provide all-terrain traction.