KEEN WK450 Double Kay 450 Walking Shoes Brand new, unused. In pristine condition, as purchased. Brand Code: 1028917 Size: 25.5cm Color: Black Retail Price: 17,600 yen SOLVED BY WALKING. A revolution in walking shoes. The curved sole unit "KEEN.CURVE?" provides a rolling walking experience, making walking smoother. It efficiently uses the kinetic energy applied to the foot, allowing you to walk longer, farther, and enjoy outdoor activities more. Equipped with a newly developed sole unit that expresses a curve along a 450mm radius circle, enhancing lightness. Suitable for a wide range of uses, from walking to urban environments. Materials ●UPPER: The upper uses lightweight and breathable performance mesh, with TPU overlays for improved durability. ●FOOTBED: A footbed that is three-dimensionally molded to match the shape of the foot, using plant-based materials and resistant to compression under weight. PU (polyurethane) footbed. ●MIDSOLE: Lightweight, durable, and shock-absorbing compression-molded EVA midsole provides excellent cushioning. A full-length nylon plate covering the entire foot enhances lower leg acceleration, providing stability and a unique rolling ride. ●OUTSOLE: KEEN all-terrain rubber outsole for a firm grip on the ground, non-marking and abrasion-resistant. Features ●Features the patent-pending KEEN.CURVE? technology, inspired by the movement of a circle, creating a unique rolling walking sensation and providing non-stop propulsion. ●Highly breathable and quick-drying mesh lining provides a dry and comfortable fit. ●Padded tongue and collar soften the feel and provide a comfortable fit. ●EVA Strobel construction enhances cushioning. ●TPU reinforcements in key areas improve durability. ●Uses 100% recycled PET shoelaces.