Altra FootwearAltra Footwear - One 2.5

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Unleash those animal instincts and power through your next run in the lightning-quick speed One 2.5 running shoe! ; Altra Zero Drop recommends that those new to natural running and zero-drop footwear transition slowly by wearing these on shorter runs and gradually building up to regular mileage. ; Successor to the One 2. ; Built on a neutral last for experienced athletes looking for fast, lightweight performance. ; Ideal for running, racing, speed work, training, and walking. ; Designed to improve running form, toe splay, natural stability, and comfort. ; Quick-drying, breathable mesh upper with thin synthetic overlays. ; Foot-shaped toe box allows toes to relax and move freely, providing enhanced comfort, natural stability, and a more powerful toe-off. ; Slightly padded tongue and collar. ; Breathable textile lining supplies a great in-shoe feel. ; 5 mm Contour insole. ; Dual-layer EVA midsole features A-Bound top layer that absorbs impact and rebounds energy with each stride. ; InnerFlex technology adapts to foot's natural flex by employing omnidirectional flex grooves in the midsole. ; Fully cushioned Zero Drop technology promotes a more natural foot strike and a more efficient stride. ; Rubber outsole with FootPod technology. ; Total Stack Height (total thickness of midsole and outsole underfoot): 23 mm ; Imported. Measurements: ; Weight: 8 oz ; Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size.