Integrated Motion Outsole, Flex Welt, and laser-perforated nubuck support unrestricted movement and flexibility. Dynamic energy foam is designed to comfort and propel each part of the foot, and rivals top-of-the-line running shoes. Zonal tongue and Achilles padding generates ready-to-wear comfort from day one. Anatomically contoured energy foam footbed cushions as it supports weight distribution and moisture control. Full rubber outsole provides mobility, durability, and reliable grip for any terrain. Grand.ØS technology.