Double click image to zoom in
Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.
When the temperature drops to arctic levels, reach for the WarmCube Expedition Sleeping Bag. The 800-fill-power down, synthetic HL-ElixR Micro insulation, and Pertex Quantum shell fabric combine to provide superior coverage for summit bid-worthy adventures. Protected by a water-resistant layer of overlapping baffles, innovative 3D WarmCube construction prevents down fill from being displaced and traps heat in the surrounding channels so you stay warm—no matter what. An anatomically designed footbox, the two-way YKK zipper with a down-filled draft tube, and a cinchable draft collar and hood further limit heat loss.
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking, skiing & mountaineering accessible and enjoyable for everyone.
© 2026, Master Store
