La Sportiva Women's Mutant Backcountry Trail Running Shoe fabric-and-synthetic WELL CUSHIONED - The Mutant packs a whole lot of cushion in an aggressive yet ultralight package, making it durable mountain running shoe ideal for moderate to technical terrain FIGHTS FRICTION - Integrated Fusiongate Lacing Harness with High Frequency reinforcements and Spyraltongue technology pair up to deliver a snug, stay-put fit that reduces friction and maintains comfort for high mileage trail running LIGHTWEIGHT, BREATHABLE - AirMesh fabric keeps your feet cool on hot days, controls moisture and prevents blisters without adding unnecessary weight; 4-way stretch dynamic scree guard protects ultralight uppers from loose rock STABILITY & CONTROL - Super grippy FriXion XF sole with Impact Brake System and V-Groove provides excellent traction and stability on slick trails and uneven ground, allowing you to stop on a dime AWARD-WINNING - Designed for unbeatable performance on technical terrain, La Sportiva's Mutant Trail Running Shoe has earned the Editors' Choice award from Trail Runner and the Gear of the Year title from Outside Magazine