Made for warmer days and designed to handle a range of terrain, conditions, and activities, the Gamma Lightweight Jacket – our lightest Gamma Jacket – is an essential softshell for maximizing time outside. Wind resistant and water repellent, the Fortius 1.0 softshell fabric stretches, breathes, provides UPF 50 protection, and is made with recycled nylon. The regular fit allows room for light layers and is patterned for freedom of movement.