Ice-X -30° Sleeping Bag from The Backside

X-Fiber insulation which is 5 to 10 times smaller than most man made fills. This insulation has an incredible .7 denier ratio which results in similar control of convective and radiant heat transfer as natural down. X-Fiber still retains heat, even when soaking wet! The shell is water resistant, breathable, lightweight, durable and still extremely comfortable. Features include free compression sack with every bag, left and right zippers to allow bags to be zipped together side by side, and wider chest and shoulder area designed to let you sleep in style. Outer shell : Black Lining : Black Filling : X-Fiber