Lotto - ATP Machine Speed (Black/White) - Men's: A durability guaranteed shoe designed to meet the rigors of tournament level play and used by professionals on the ATP circuit. Upper contains a Microfiber Top with air vents. Dual-density ADAPTO heel counter sheet. Toe cap with "Reinforce" anti abrasion stiffener. Anti static lining. Modular anatomic tongue. Molded EVA midsole. ENERTURN cushioning system along entire shoe. Anatomic, removable EVA insole with Fibre-Dry anti-bacterial lining. Torneo last. LONGLAST 30 compound outsole with limited six-month warranty. PUNTOFLEX system uses a special technical device placed across the sole in the metatarsal area which allows correct foot flexion and excellent rebound. Shoe weighs 16.9 ounces.