Description of Merrell Overdrive II Trail Running Shoes For adventure runners who want to maintain speed over changeable terrain the Overdrive has evolved, back to front. The heel pod maintains the same braking power with increased durability. When loaded, TPU studs, flush cut at the forefoot, improve traction on uneven terrain. A new EVA midsole lowers the profile for stability without diminishing the effect of Trailspring™ structural support and cushioning. Features: Gender Specific Exclusive Trail Balanced Last Slip Lasted Construction with EVA Insole Airmesh Upper with Leather Trim Mesh Lining Treated with Aegis™ Antimicrobial Technology Injection TPU Heel Counter Support Arms 360° Reflective Trim Kevlar Lace and TPU Molded Lace Lock System Heel Securing Top Eyelet System Bellows Tongue with Lace Keeper Flap Forefoot Protection Design with Gaiter Hook Ventilation and Drainage System in Forefoot Anatomical Ventilated Footbed with Etc.® Anti-friction Socklining Lining Treated with Aegis™ Antimicrobial Technology Trail Alignment System Dual Density Molded EVA Footframe Injection TPU Trailspring™ Structural Support, Alignment and Cushioning System Gaiter Strap Channel at Arch Bridge Merrell Air Cushion Midsole Multi-surface, High Density Studs in Outsole Forefoot Vibram® Ultra-Traction™ Dual Density/TC-5+ Rubber Men’s Weight: 1 lb. 6 ozs.