The Kilimanjaro 3 ThermaShift is an expedition class sleeping bag with variable down channels that allow the down to be shifted horizontally, effectively giving the user control over the insulation distribution. This extremely versatile sleeping bag includes a full-length and foot zipper (both YKK), cowel and neck collar. Superb insulation, but with ample ventilation when you need it. The fabric has a DWR coating, but it's not recommended to be used in rainy conditions unless used inside a waterproof breathable bivy bag. Tested on Kilimanjaro, and to Everest Base Camp.Full Dull micro polyester soft inner wicks moisture away from the body through the bag keeping the occupant dry.