Description of La Sportiva Fireblade Trail Running Shoes A triple density midsole gives the Fireblade the perfect foundation for a long distance stable trail runner. When your body gets tired and your form gets thrown out the window the Fireblade keeps you on track. A meticulously designed upper delivers excellent heel support and wraps the foot with synthetic leather and an integral external scree guard to lock down your foot to the midsole. Low profile, neutral, lightweight extremely stable performance trainer with moderate pronation control Features: Weight: 12.82 oz (359 g) Last: Racing Construction: Slip Lasted Strobel Fit: Medium Upper: AirMesh/ Synthetic Leather Rubber toe-cap Lining: Mesh (heel only) Midsole: Triple-density MEMIex/ TrailShock High-tensile composite Rock Guard Midsole Height (MM): (Heel: 26/Toe: 16) SOLE: FriXion® AT/ Racing