Go from walking to running with ease in an energizing sneaker with cushioning and support perfect for interval walking. Engineered knit with supportive flex gear overlays. Lace-up front for a secure fit with back pull tab and ghillie lacing system for a secure fit. Padded tongue and collar. Anatomical insole with extra arch and heel support. Lightweight compression-molded EVA midsole. RE-ZORB® responsive cushioning heel crash pad for impact protection and shock absorption where you need it most. Second-density EVA launch pad under the toe. Lightweight and durable compression-molded, non-marking rubber outsole.