Insulated with lightweight compressible 700-fill hydrophobic down the hooded Rab Men's Microlight Alpine Jacket provides low-bulk warmth for everything from hiking to climbing to around town use. The water-resistant insulation equips the jacket for all-weather performance. The exterior of the jacket is constructed of ultra-lightweight Pertex Quantum ripstop nylon fabric. Beneath that windproof breathable shell fabric recycled 700-fill down insulation delivers warmth without excessive bulk or weight. Unlike traditional down which can wet out and lose its ability to insulate the jacket's insulation has received a Nikwax treatment that helps it stay dry longer dry faster if it should become wet and most importantly continue to insulate even if it does become damp. An insulated adjustable hood extends protective coverage and bolsters warmth. The hood has a built-in brim that has a bit of structure to ensure that you maintain a clean line of sight while fending off glare and precipitation. Other features include a full-length front zipper a drawcord-adjustable hem elastic cuffs a zippered chest pocket and two high-set hand pockets that allow access even if you're wearing a backpack or a harness.Available in an array of size and color options the Rab Men's Microlight Alpine Jacket has a slim fit that is best worn over baselayers and low-profile midlayers.