Rab Insulated JacketsThe Mens Altus Jacket from Rab is a comfortable and quick drying insulated jacket that will keep you warm no matter where your next expedition takes you. This jacket features a Pertex Quantum shell so that you can stay protected from the wind while 3M featherless insulation provides warmth and comfort. This Cirrus insulation means that you get the comfort and warm traits of down but with the performance of a synthetic providing better water resistance in adverse conditions.Not the insulated jacket you\'re looking for? Take a look at our large range of insulated jackets for your next adventure.