Speed work has never been so fun. Pick up the pace and pass up your old PR, in the Altra® Paradigm 2 running shoe! Predecessor: Paradigm 1.5. Support Type: Neutral to underpronation. Cushioning: Maximum cushioning. Surface: Road. Differential: 0 mm. 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. A neutral trainer built for runners seeking lightweight, maximum underfoot protection that encourages low-impact form. Ideal for road running, trail running, ultramarathons, and walking. Designed to improve: Running form, toe splay, stability, and comfort. Quick-dry air mesh upper with thin, lightweight synthetic overlays. FootShapeTM toe box allows toes to splay naturally. Lace-up closure. Lightly padded tongue and collar. Breathable mesh lining for a great in-shoe feel. Removable 5 mm Sculpted footbed. Fully cushioned Zero DropTM platform helps to align the body, promoting a natural, low-impact landing. Dual-layer EVA midsole with highly-responsive A-BoundTM top-layer returns energy with each stride. FootPodTM midsole and outsole pattern maps the foot's bones and tendons, boosting pliability. Total Stack Height (total thickness of midsole and outsole underfoot): 34 mm. SD5-M last. Product measurements were taken using size 7.5, width B - Medium. Color: Coral