Whether on K2 or Denali, the Iceline is the ultimate in extreme mountaineering performance for the coldest of conditions. Ideal for: Expedition & Polar, Mountaineering Weight: 1650g/3 lbs 10.2ozs Good Night's Sleep Temperature: -30°C/-22°F Iceline Part of our Extreme Expedition sleeping bag range, the Iceline is designed for high-altitude mountaineering and extended use in all but the very coldest environments. Using 994g of exceptionally high-quality minimum 800-fill power CODEX-approved European goose down and a lightweight yet durable GORE-TEX WINDSTOPPER® 10 denier outer fabric, the Iceline keeps you warm in extreme temperatures while also being highly breathable and water resistant. Extreme Expedition bags like the Iceline utilise our most complex baffle system. Through the chest and upper legs, V-shaped baffles over maximum down overlap and eliminate cold bridges, while trapezoid baffles prevent down migration across the middle of the bag. Full-length baffles down each side maintain the bag’s optimised box-like structure. A complex seven-baffle system concentrates down in the hood for optimum warmth and protection over long-term use. In contrast, a six-baffle system focuses warmth around your feet in the anatomically shaped foot box. Down type and density are varied strategically through the bag to ensure it can resist compression on the underside while allowing maximum loft on the top. Internally, our time-tested EXL® elasticated stitching system inside the bag minimises dead airspace, reduces drafts, and pulls the liner fabric away from the down, allowing it to loft effectively for maximal warmth. A full-length Gemini™ entry zip baffle dramatically reduces heat loss in this typically vulnerable area, and the low-profile magnetic Lode Lock™ closure and collar drawcords are easy to use in the dark. An internal mesh pocket and secure zipped pocket keep essentials close to hand. A roomy Expedition fit ensures comfortable sleeping and accommodates extra down layers, while a large foot box with a breathable GORE-TEX WINDSTOPPER® liner accommodates boot liners and wet items. With a Good Night’s Sleep Temperature of -30oC (-22oF), the Iceline is an exceedingly warm, practical and durable sleeping bag for those pushing their limits in extreme mountain environments. Technical Details Temperature Ratings For our Expedition bags, we don't give Comfort, Limit or Extreme limits, as the ISO 23537 test excludes the testing of “extreme climate zone expedition” sleeping bags, or bags which have a measured limit temperature colder than -24 °C. Features GORE-TEX WINDSTOPPER® 10D outer shell is durably light highly breathable and rain-resistant 994g of 90-10 European Goose Down with a minimum fill power of 800 Expedition fit with EXL® system is both roomier and has improved loft and thermal efficiency V chest and foot baffles & Trapezoid main body baffles Ground level side seams with V-side baffle 7 baffle low volume anatomically shaped hood 6 baffle anatomically shaped and offset foot-box Full length Gemini™ zip baffle and integrated neck collar with Lode Lock™ closure GORE-TEX WINDSTOPPER® 10D inner foot-box and hood lining Inner pocket for keeping essentials warm and dry Wash & Care WASHING For information on how to wash your Iceline bag, please see our care of down sleeping bags page. DRYING For information on how to dry your Iceline bag, please see our care of down sleeping bags page. STORAGE Store uncompressed in cool, dry place away from direct sunlight Our Guarantee Everything we make is fully guaranteed to the original purchaser against defects in components, materials and workmanship for the reasonable life of the product. If the product is found to be defective before use, or fails during use for one of these reasons we will repair or replace it at our own discretion. Find out more. So confident are we that our sleeping bags will keep your warm and comfortable, that in addition to the EN13537/ISO23537 laboratory ratings we quote, every Mountain Equipment sleeping bag comes with a separate ‘A Good Night’s Sleep Guaranteed’ temperature rating.
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