Design: A breathable, lightweight upper has a comfortable, sock-like feel with a 7/8-length inner sleeve and provides easy entry Plush foam around the collar provides comfort and support around your ankle Nike Free technology in the forefoot creates flexibility for agility moves like burpees, planks and sprints Stretch around the collar lets your foot move naturally as you burst, cut and brake Molded heel clip offers support Webbing eyelets offer dynamic containment In-Shoe Comfort: A softer foam core cushions your foot, while a firmer outer layer is durable and stable Wide internal webbing distributes pressure around your midfoot for a comfortable yet secure feel during sudden stops and quick cuts Durability & Traction: Rubber tread in high-wear areas gives you durable traction