Upper is constructed from a microfiber which is lightweight, durable and abrasion resistant, 3D ankle protection for an improved fit and a lighter weight, Original speed lace system, Ankle strap provides secure closure and fits flush within upper ankle polymer protection panel to ensure streamlined finish, Flex areas on heel and instep for enhance comfort when walking, Lining is breathable 3D mesh with a microfiber suede anti-slip surface inside at the heel, Internal toe box and heel counter guards positioned under the shoe outer chassis, Lightweight rubber sole with textured grip design and integrated support shank for rigidity, Replaceable anatomical EVA footbed with stretch fabric top liner, Metallic mesh airflow vent