The Antarctic Extreme Down Jacket is a high performance, winter jacket. Tested to keep you warm in temperatures as low as -60C. Fully waterproof, breathable, with taped seams and fur trim hood - you're sure to stay snug and dry in extreme cold. Guaranteed Waterproof - With taped seams and our IsoDry fabric with a waterproof and breathable membrane to allow perspiration out, but keep you dry. Rated at 5,000mm waterproof, 5000mm breathable Down - 75% duck down and 25% feather make this jacket extremely warm Downproof Lining - Stops feathers and the filling of the jacket from poking through Hood - Adjustable for a close fit, detachable for dry days, and a faux fur trim for extra warmth Adjustable Waist - Elastic cord with plastic toggles lets you draw the waist in for a better fit Inner Rib Cuffs - Adjustable cuff with a Velcro strap and an inner ribbed cuff for warmth and comfort- also helps prevent water from getting in at the cuffs Lots of Pockets - One internal MP3 player/mobile phone pocket, four front zipped security pockets, and two large front popper pockets Heat Rating - Laboratory tested to -60C. Health & physical activity, exposure time & perspiration will affect performance & comfort