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. Need a heavier option? Try the Gamma Jacket .