Lightweight microfiber upper Construction 3D dimensional ankle guard for improved fit and light weight Advanced 3D mesh inserts offer ventilation and comfort The upper is constructed from a microfiber which is superbly lightweight, durable and abrasion resistant. Strategically positioned perforations for enhanced ventilation and comfort. Flex areas on heel and instep for an enhanced comfort while walking. Advanced 3D mesh offers a highly breathable lining together with a microfiber suede anti-slip surface inside the heel. Internal protective toe box and heel counter are positioned under the microfiber outer chassis. Extremely lightweight, specifically compounded, rubber sole provides textured grip, excellent absorption and features an integrated support shank for an enhanced sole rigidity. Replaceable anatomical EVA footbed with lycra lining on top. Strategically positioned metallic mesh vent for improved airflow.Inedited 3D dimensional ankle protection for improved fit and a lighter weight. Original speed lace system derived from auto racing shoes for a personalized fit and feel. Ankle strap provides provides secure closure and fits flush within upper ankle polymer protection panel to ensure streamlined finish. SEKTOR shoe is Cat 2 CE certified to 89/686/ECC EU directive.