Wherever the trail takes you, go with confidence in the lightweight and waterproof Alto Light HS. Boasting uncompromised protection from the elements in a minimalistic design, the Alto Light is one of our lightest hiking shells. The 2.5-layer Mammut DRYtechnology™ laminate made with recycled polyester is PFC-free and waterproof. This hardshell jacket delivers a great range of features optimized for hiking, including underarm ventilation and adjustable hood, hem and cuffs. Lightweight, versat