A mission-critical piece designed for high-altitude expeditions and the most bone-chilling conditions on Earth, the Phantom™ WINDSTOPPER® -40° is our most protective sleeping bag yet. Take shelter from hardcore mountain conditions in this weather-resistant GORE-TEX® cocoon that's so ultra-warm and packed with lofty down insulation, you won't want to leave when the summit window strikes. Built with light and compressible materials, moving camp is a breeze, helping get you one step closer to the top.
Uses: Backpacking, Basecamp, Expeditions, Mountaineering
Product Pitch: Our most protective sleeping bag for the coldest conditions and high-altitude expeditions.
Features: 800-fill down insulation for optimal warmth-to-weight ratio and compressibility|GORE-TEX® WINDSTOPPER® fabric is breathable, highly water-resistant, windproof, and ideal for severe conditions|Expedition mummy cut efficiently adds space to allow for gear storage in freezing temps|Lightweight but durable #5 zipper with anti-snag for easy entry and exit|Shaped draft collar blocks the escape of warm air from inside the bag|Oversized down-filled face gasket extends into the hood to comfortably block drafts|Oversized hood allows for full cinch closure in freezing temps|Contoured footbox follows natural foot position for maximum warmth and comfort|Vertical side wall baffles for added warmth and maximum loft|Glow in the dark, reflective zipper pull|Nylon compression sack and mesh storage sack included|Oversized dual zipper draft tubes prevent cold spots along the zipper
Fabric Body: GORE-TEX® Windstopper 30D 2-Layer Nylon Ripstop 57 g/m²
Product specific Content Asset ID: 260927-3dsb-expeditionmummy-800filldown
Benefit: Breathable Water Resistant 800 Goose Down Insulation Responsible Down Standard
Activity: Backpacking Basecamp Expeditions Mountaineering
Benefit: Breathable Water Resistant 800 Goose Down Insulation Responsible Down Standard
Technology: GORE-TEX
Insulation Type: Down
Approx. Weight*: 4 lb 8.4 oz / 2052 g
Insulation Type: Down
Product Class: Down Sleep Systems <10
Activity: Backpacking Basecamp Expeditions Mountaineering
Is New?: No
Bag Shape: Expedition Mummy
Temperature Rating: -40 F / -40 C
Bag Fill Type: 800-Fill Goose Down
Draft Protection Features: Neck Draft Collar Vertical Side Wall Baffles
Fabric Body: GORE-TEX® Windstopper 30D 2-Layer Nylon Ripstop 57 g/m²
Fabric Shell: GORE-TEX® Windstopper 30D 2-Layer Nylon Ripstop 57 g/m²
Style Variants
Available Colors: Alpine Red
Size Reference for Mountain Hardwear Down Sleeping Bag
Available Sizes: Regular / Left Hand, Long / Left Hand






























