Eat up the trails with the aggressive performance and comfortable control of La Sportiva's Mutant trail running shoe. Crafted for responsiveness, stability and drive over a variety of soft and hard terrains with a gentle shock absorption design, these weapons are ideal over short to long distances attacking steep technical trails. The upper construction comfortably accommodates a medium to wide fit with a synthetic/PU scree guard wrapped around the foot to give a snug and secure fit for optimal stability in a technical trail running shoe, back upped by an additional Spyraltongue design and a unique "out of the way" lacing layout. Underfoot the STB system maintains torsional stability over tricky/uneven terrain, converting to a softer flex and responsiveness over the toes and extremely aggressive lugs for power and drive. A durable and grippy Frixion XF rubber and EVA rock guard allow you to move with power over a range of rough and soft terrains. Controlling your movement is an impact brake system under the heels and rugged V groove tread pattern, helping to maintain speed on steep ascents and descents.