The New Altra Footwear Intuition 4 (Black) Women's Running Shoes, female, Shoes , Athletic , Running, 6.5 B - Medium, true, Put the miles behind you in the Altra Intuition 4 running shoe. Predecessor: Intuition 3.5. Support Type: Neutral. Cushioning: Lightweight flexible response. 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. Ideal for running ultramarathons long distance walking and cross training. Designed to improve running form toe splay stability and power. Breathable quick-drying mesh and synthetic upper materials. Lace-up closure. FootShape toe box allows the toes to relax and spread naturally for optimal comfort speed and stability. Lightly padded tongue and collar. Breathable fabric lining offers a great in-shoe feel. Removable 5 mm foam insole. Natural Ride System blends outsole and midsole componentry along with anatomical design the Zero Drop platform and foot-shaped last to promote a more natural stride. Zero Drop construction places the heel and forefoot at the same distance from the ground to encourage natural low-impact running form. INNERFLEX grid-like midsole flex grooves add flexibility right where it's needed to promote speed and enhance performance. Ultralightweight Abound EVA midsole foam and a unique energy-returning compound work together to protect feet upon impact and add sprint to each step. Foot Pod Technology consists of an outsole and midsole layout that maps the foot's bones and tendons for more natural flexibility. Total Stack Height (total thickness of midsole and outsole underfoot): 24 mm Last: SD2-M / SD-W Imported. Measurements: Weight: 8 oz Product measurements were taken using size 7.5 width B - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item not a pair.