Description Of La Sportiva Fireblade Lightweight performance trainer for any type of trail running. Light, flexible and sticky. This shoe is designed for Mountain Running(r). A sturdy heel cup mixed with a triple density midsole and a high tensile composite RockGuard protects the foot from gnarly terrain. The Fireblade is a stable, mid cushioned shoe ideal for mild pronaters and neutral runners. Features: Stretch mesh tongue guard keeps dirt, pebbles and trail debris out. Triple-density midsole with TrailShock for pronation control and stability Roomy ventilated toebox UPPER: AirMesh/Synthetic Leather/Rubber toe cap CONSTRUCTION: Slip Lasted Strobel LAST: Racing LINING: Mesh (heel only) SOLE: FriXion(r) AT/Racing MIDSOLE: Triple-density MEMlex TrailShock/High-tensile composite Rock Guard WEIGHT: 12.1 oz / 347 g