One of the most trusted shoes in the cross-training field got an update and its better than ever. The Reebok CrossFit® Nano 8 combines the proven performance of the previous Nanos with a brand new comfortable fit. This fit comes from the all new heel bootie construction that allows for flexibility comfort and ease of movement in the upper. Strong nanoweave upper with pattern zones for breathability and extra durability. Flexibility with forefoot flex grooves. High abrasion rubber outsole keeps the shoe durable and battle tested. CMEVA molded midsole for extra cushioning. Molded sockliner for comfort cushioning and durability. Synthetic mesh upper for comfort fit and durability. Low-cut design for added mobility. Toe tection design to add durability in the toe area.