Whether terrain changes with expert ease when you pick up the pace in the adidas Pureboost X ATR all-terrain running shoe! ; Predecessor: None. ; Support Type: Neutral to underpronation (supination). ; Cushioning: Lightweight, flexible response. ; Surface: Road/Trail. ; Differential: 9 mm. ; techfit textile uppers promote natural, flexible support, and a seamless, sock-like fit. ; Lace-up closure. ; Bootie design with integrated tongue for a great fit and feel. ; Thin, comfortable tongue and collar. ; Smooth fabric lining offers a great in-shoe feel. ; Molded foam insole. ; Free-floating arch. ; boost midsole features energy-returning properties to keep every step charged with light, quick, endless energy. ; Heel/Toe: 25.5 mm/16.5 mm. ; Lightweight STRETCHWEB rubber outsole adapts to the ground for reliable stability. ; ATR outsole works like winter tires to deliver exceptional grip and traction. ; Imported. Measurements: ; Weight: 8 oz ; Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.