Rated for use in temperatures as low as -25ºC/-13ºF, the Glacier 1000 is warm and cozy thanks to its 700-fill power duck-down insulation, which is wrapped in Mountain Equipment's proprietary Drilite Loft II fabrics. This outer shell provides a measure of protection against moisture, keeping the down inside dry and helping it to retain the properties that make it a great insulator. That down itself is not hydrophobic – as most other manufacturers are using – but thanks to the protective fabrics it really doesn't have to be. The Drilite Loft materials do a great job of keeping the bag dry and comfortable, even in extremely cold and wet environments.
One of the biggest challenges that I typically face when crawling into a sleeping bag is getting comfortable due to my size. I'm fairly tall (6'2"+) and broad, which often leads to feeling a bit confined when I settle in for a night's sleep. But, that wasn't the case with the Glacier 1000, which has been designed to provide plenty of room in the interior. In fact, I found the bag to be quite spacious, which made it all the more comfortable. Mountain Equipment has even sculpted an anatomically shaped foot-box that provided plenty of room as well. That's not always easy, as I often find a lot of sleeping bags are very confining in that area.
Despite having plenty of room inside, the bag didn't disappoint in the level of performance it offers. Thanks to strategically placed baffles throughout the design of the Glacer, heat is retained quite nicely. So much so that you'll definitely only want to use this sleeping bag when the conditions call for it, otherwise you'll find yourself overheating. If anything, Mountain Equipment is probably being conservative with its temperature rating numbers, and depending on the situation I wouldn't hesitate to use the Glacier in even colder conditions.
Other nice features include a nicely shaped hood that once again provides warmth without being overly confining. That same hood can be sealed up using the company's Lode Lock closure, which makes it a breeze to wrap into place, and can be opened with one hand when it is time to crawl out of the bag. Mountain Equipment also ships the Glacier with a roll-top waterproof stuff sack for use in the field and a cloth storage cube for maintaining loft while at home.
Despite its fantastic performance in cold conditions, perhaps the most impressive thing about the Glacier 1000 is its price. A sleeping bag designed for use in extreme cold will typically set you back a considerable amount of money, but somehow Mountain Equipment has managed to deliver high level performance for just $380. I know for many people that will sound like quite an expensive sleeping bag, but when compared to similar bags from the competition, the Glacier 1000 delivers a lot of bang for the buck.
And if you happen to be one of those people who simply doesn't want to embark on an arctic adventure, Mountain Equipment makes versions of the Glacier for you too. The Glacier 700 and 450 offer many of the same features, but are suited for use in warmer conditions, although their temperature ratings offer solid comfort in cold conditions too.
With winter on the horizon here in northern hemisphere, it is time to start thinking about our cold weather outings to come. If you find yourself in need of a good sleeping bag to keep you warm on those excursions, the Mountain Equipment Glacier 1000 is an excellent option. Whether you're skiing through the backcountry, making alpine ascents, or simply going winter camping, this is a sleeping bag that you'll be glad to have in your own gear closet.
Find out more at mountainequipment.com.