Men's Ossa Overshirt

The Men’s Ossa Overshirt is a button-up layer made for summer hiking when sun exposure is constant and you still want something breathable on. It works well over a tee or tank, giving you light coverage for long, exposed days on trail without feeling overbuilt for the conditions.

Arc'teryx uses a textured nylon ripstop here to help minimize that clammy, skin-sticking feel in hot weather, which matters once the day heats up and the pack goes on. The pop-up collar adds extra neck coverage when the sun is beating down, and when you don’t need it, the overshirt packs into its chest pocket for easy carry.