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.
Ski, climb, hike, camp, and summit with expert-curated, guide-tested outdoor gear from top brands. Shop online or visit us in Seattle for friendly advice!
Not valid on sale items, Garmin products, or Totem Cams. Other exclusions may apply
© 2025, Ascent Outdoors
Follow us on Instagram (@ascent.outdoors)
to see our latest adventures,
plus events & announcements.