The Ossa ½ Zip Hoody is a seriously lightweight hooded jacket from Arc’teryx, made for those bright summer days when you still want the full protection of a jacket. The fabric is maybe the star of the show here—with a featherweight nylon/elastane ripstop keeping the wind at bay while also offering protection from the sun’s rays. That half-zip design allows for easy temperature regulation, and thanks to that chest pocket it can be packed away nice and small when not in use. A solid option for weight watchers and trail-runners.