Great grip and a lightweight construction make the Altra Women's Superior 2. 0 Trail Running Shoe versatile enough for light hiking and long distance trail running. The Zero Drop platform places your heel and forefoot at the same distance for a natural stride. The Superior's A Bound midsole returns energy with every step, propelling you forward with less effort, and provides comfortable cushioning while keeping things minimal and low profile. InnerFlex grooves in the sole and midsole keep things flexible and help you grip uneven terrain. Altra also added a 5mm Contour footbed for lightweight support, and a removable StoneGuard insole for lightweight protection when you're cruising over rocky and rugged terrain.The Superior 2. 0 also features Altra's TrailClaw sole, which shapes sticky rubber to match your foot's bones and tendons for a natural flex and killer grip. A FootShape toe box lets your toes spread out naturally to ensure stability on rugged terrain. Altra built the Superior 2. 0 with a quick drying and durable Air Mesh upper to ventilate and keep your foot cool, and included its Gaiter Trap technology to accommodate debris blocking gaiters without having to wrap them around the shoe's sole.