Big Agnes Battle Mountain -15°

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The hybrid Battle Mountain -15° sleeping bag uses 600 fill goose down on top and more eco-friendly bamboo charcoal synthetic insulation on the bottom. The renewable insulation is derived from bamboo that is burned at 1,500° Fahrenheit to create charcoal, which is then spun into a synthetic fiber. Bamboo has a fast growth rate, consumes high levels of carbon dioxide, and generates up to 35 percent more oxygen then an equivalent stand of trees.


Temp Rating -15°F
Weight 4 lbs 13 ounces (regular), 5 lbs 7 ounces (long)

Retailers' Descriptions

Here's what other sites are saying:

FREE! Clearview Pillow With the purchase of The new Big Agnes Battle Mountain features Bamboo Charcoal Synthetic Insulation on the bottom for extra insulation: Eco-friendly, renewable synthetic insulation derived from bamboo which is burned at 8000C temperatures to create a charcoal that is then spun into a synthetic fiber.The Battle Mountain also blankets your body with 600 fill Goose Down insulation on the top and sides to keep you warm and cozy when temperatures really dip down below zero.Since this winter bag could be used at sub-zero temperatures, you will want a pad with a good r-value on the bottom so you dont get cold from the bottom up.We recommend using a Dual Core pad or Two Track


When you sleep at 12,000 feet or in a snow cave, you'll be glad you brought along your Big Agnes Battle Mountain Down and Bamboo Sleeping Bag. Big Agnes stuffed the top of this minus-15-degree-rated sleeping bag with down and the bottom with viscose from bamboo. The Battle Mountain is Big Agnes's only sleeping bag that has insulation between you and your sleeping pad. Slide your compatible rectangular sleeping pad into this bag's integrated sleeve, and you won't roll off your pad in the middle of a frigid night. The rectangular shape gives you a little extra shoulder and foot room, and a built-in pocket for your camp pillow adds a touch of luxury to your cold night outside.


Battle the extreme cold with this Big Agnes Battle Mountain sleeping bag and you'll be warm and cozy all night long. Utilizes 600-fill goose down in the top portion of the bag and bamboo charcoal synthetic fill on the bottom portion for cold-weather comfort. Bamboo charcoal synthetic insulation is derived from burning bamboo to create a charcoal that is spun into a fiber. Every Big Agnes sleeping bag requires a pad to provide the necessary insulation on the bottom; integrated pad sleeve fits a 20-in.-wide pad. Continuous oversize draft wedge insulates the connection between bag and pad to prevent cold air from entering and warm air escaping. Contoured collar at the top of the bag seals around the neck to further prevent warm air from escaping and cold air from entering. Large draft tube located behind the zipper prevents warm air from escaping and cold air from entering. Ripstop nylon shell, with a DWR (Durable Water Repellent) surface treatment sheds water; soft, breathable nylon lining. Rectangular shape offers room in the shoulders and footbox for unrestricted comfort. Built-in pillow sleeve lets you stuff a jacket or a backcountry pillow inside. 2-way, full-length, locking zipper with big, easy-to-grab zipper pull. Bag will zip to another Big Agnes bag with a 70-in. zipper on the opposite side. Interior fabric loops secure a sleeping bag liner; liner sold separately. Includes a nylon stuff sack and a large storage bag. Closeout.


Free Shipping. Big Agnes Battle Mountain -15 Degree Sleeping Bag (Fall 2009) Specifications for the Battle Mountain -15 Degree Sleeping Bag by Big Agnes: 600 fill goose down bamboo synthetic bottom Weight: (reg) 4 lb 13 oz (long) 5 lb 7 oz Pad Size: (reg) 20in. x 72in.rec. (long) 20in. x 78in.rec. Features: Integrated pad sleeves. Never roll of your pad again No-draft yoke seals around neck to keep cold air from sneaking in 70in. YKK #8 zipper. Mate together any of theri left and right zip bags with a 70in. zipper Rectangular shape offers more room in foot box and shoulders Cotton storage sack & nylon stuff sack included Built in pillow pocket holds a fleece or Big Agnes pillow Interior fabric loops for sleeping bag liners No-draft wedge insulates the connection between the bag and pad No-draft zipper tube insulated along the length of the zipper

- Moosejaw

The new Battle Mountain Sleeping Bag from Big Agnes features both 600-fill down and bamboo synthetic insulation to keep you toasty at base camp. You know about down, a lightweight insulation that keeps you warm by not allowing your body heat to escape. To make bamboo synthetic, an eco-friendly and renewable insulation, bamboo is burned at 1,500 degrees Fahrenheit to create a charcoal that is spun into a synthetic fiber. The result of combining these two insulation types in the Battle Mountain is a cold-weather sleeping bag with a rating of negative 15 degrees Fahrenheit. This sleeping bag also features Big Agnes' integrated pad sleeve slide your sleeping pad into the bag's bottom to provide ground insulation. Because it has its own compartment, your pad won't slide around, and you won't wake up lying next to it. Buy Big Agnes' 20-inch rectangular pad to go with your Battle Mountain.

- Backcountry Outlet

Big Agnes Battle Mountain -15°


The Battle Mountain -15° has been discontinued.


The Big Agnes Battle Mountain -15° is not available from the stores we monitor. It was last seen August 21, 2010 at

If you're looking for a new cold weather hybrid sleeping bag, check out the best reviewed current models.