Birkenstock Unisex Adults' Boston BS Super Grip Leather Clog CL_811125023061 MPN: P008199 NY_719408475463 MPN: P008199 The specialized Race Predictor takes into account your fitness level and training history to help you work toward your race goal and see the impact of training on your predicted finish time Features: Signature Support: Contoured cork latex footbed adapts to the foot with wear for customized comfort Professional Traction: Super Grip outsole designed for enhanced slip resistance and durability Premium Materials: Natural leather upper offers breathability and long lasting wear Shock Absorption: Cushioned EVA midsole helps reduce impact during extended wear Comfort Lining: Soft suede footbed lining enhances underfoot comfort Adjustable Fit: Metal pin buckle strap allows personalized adjustment Specifications: Fit: Unisex clog design Upper Material: Natural leather Footbed: Contoured cork latex Footbed Lining: Suede Insole Material: Natural leather Midsole: EVA shock absorbing layer Outsole: Super Grip rubber outsole authentic items for sale