Big Agnes Bellyache Mountain SL
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Twelve years ago Big Agnes dove headfirst into the fray of designing gear for the outdoor world. It introduced the unique Big Agnes System (sleeping bags with a pad sleeve on the bottom instead of insulation) and defined a new level of comfort for hitting the sack at night. Now, for the first time since the brand was born, Big Agnes has revived the traditional mummy bag design and redesigned its insulation and technology from top to bottom. The result is Bellyache Mountain SL17-Degree Sleeping Bag, a technical, three-season sleeping bag that conquers wet nights in the spring and cold mornings in the fall. Perhaps the most notable feature of the Bellyache is the Downtek Insulation. This water-repellent down retains loft, breathability, and insulation value even if the down itself gets wet from rain or moisture. This gives you a serious advantage over traditional down insulation that clumps and lies flat at the first sign of moisture. Even with high-end insulation, a sleeping bag is only as good as the baffles that hold its insulation and the Bellyache uses Flow Construction, one of the most innovative baffle constructions in the industry. Insotect Flow uses a series of vertical baffles with internal gates that eliminate vertical and lateral clumping by constantly evening the distribution of insulation from head-to-toe, thus eliminating cold spots. Along with draft-stopping features like a seal around the neck opening, a wedge between the sleeping bag and sleeping pad connection, and a no-draft tube along the zipper, this sleeping bag offers reliable, regular warmth throughout the night. Amazingly, for all its cold-and-wet-weather advantages, this sleeping bag maintains a weight well under three pounds. Along with your insulating layer and a wool hat, this versatile 17-degree bag should be an essential part of your kit whether you're pitching a tarp in the Pacific Northwest or pitching a single-wall in the Carolinas.
Free Shipping. Big Agnes Bellyache Mountain SL 15 Degree Sleeping Bag FEATURES of the Big Agnes Bellyache Mountain SL 15 Degree Sleeping Bag Traditionally insulated bags designed without the integrated pad sleeve found on Big Agnes System bags Designed to decrease weight and size, while increasing thermal value using the traditional mummy shape Contoured hood features a draw cord and cord lock for easy adjustment 70in./178cm YKK 8 zipper Liner loops Mate together left and right zip bags Mesh storage sack and nylon stuff sack No-draft collar and No-draft zipper Shell is nylon rip-stop, breathable and down proof with water repellent finish Exterior loops for hang drying or storage Durable nylon fabric shell Nylon taffeta lining Insotect Flow Construction 700 fill DownTek water repellent down SPECIFICATIONS of the Big Agnes Bellyache Mountain SL 15 Degree Sleeping Bag Temperature Rating: 15deg F / -8deg C Fill Type: 700 DownTek Comfort: 28deg F / 2deg C Lower: 17deg F / -8deg C Extreme: -17deg F / -27deg C Durable nylon fabric shell Nylon taffeta lining Insotect Flow Construction 700 fill DownTek water repellent down SPECIFICATIONS for Regular Bag Weight: 2 lbs 7 oz / 1105 g Fill Weight: 21 oz / 600 g Compressed Dimension: 8 x 8.5in. / 20 x 22 cm Stuff Sack Dimension: 8 x 17.5in. / 20 x 45 cm Girth Dimension: 60 x 54 x 36in. / 152 x 137 x 91 cm Bag Size: Fits up to 6' / 183 cm SPECIFICATIONS for Long Bag Weight: 2 lbs 10 oz / 1190 g Fill Weight: 23 oz / 660 g Compressed Dimension: 8.5 x 8.5in. / 22 x 22 cm Stuff Sack Dimension: 8 x 17.5in. / 20 x 45 cm Girth Dimension: 62 x 56 x 38in. / 157 x 142 x 97 cm Bag Size: Fits up to 6'6in. / 198 cm SPECIFICATIONS for XL Bag Weight: 2 lbs 13 oz / 1275 g Fill Weight: 26 oz / 740 g Compressed Dimension: 9 x 10in. / 23 x 25 cm Stuff Sack Dimension: 9 x 20in. / 23 x 51 cm Girth Dimension: 65 x 57 x 38in. / 165 x 145 x 97 cm Bag Size: Fits up to 6'10in. / 208 cm
From Big Agnes..."We are proud to introduce a Traditional Mummy down sleeping bag line featuring DownTek(TM) water repellent down. DownTek(TM) transforms down into a water repellant, anti-microbial and anti-bacterial insulation material. Even in the wettest of conditions, DownTek(TM) repels water while maintaining loft, insulation value and breathability."Features: Traditional style mummy shaped bags designed without the integrated pad sleeve 70"/178cm YKK #8 zipper Interior fabric loops for sleeping bag liners Mate together left and right zip bags Mesh storage sack & nylon stuff sack No-draft collar seals around neck to keep cold air from sneaking in No-draft wedge insulates the connection between the bag and pad No-draft zipper tube insulates along the length of the zipper Flow(TM) Construction: Insotect Flow(TM) is a flow-optimized insulation system that delivers uniform heat distribution and natural body contouring through its revolutionary baffle design. Flow Construction eliminates lateral and vertical down shifting by using vertical chambers with Flow Gates to regulate fill positioning and density. Strategically placed Flow Gates minimize vertical down shifting while vertical chambers minimize lateral shifting. With continuous vertical Flow chambers in place of traditional side seams, Flow bags eliminate potential cold spots which can occur with side seams. Vertical baffles now flow with your body for more rapid and uniform body heat distribution. LEFT OR RIGHT ZIPPER? When you are in the bag, on your back, the right zip will be on your right side, left zip on your left side
- Mountains Plus
The new Bellyache Mountain SL bag from Big Agnes is full of features for those who prefer a traditional mummy bag. The Bellyache Mountain sports the new DownTek 700 fill down, which is treated using a nano-technology that makes the down water resistant as well as anti-microbial and anti-bacterial. The zippers allow you to mate right and left bags. Mesh storage sack and nylon stuff sack included.
For those that prefer a traditional down mummy bag on late season trips, it doesn't get better than Big Agnes' Bellyache Mountain SL +17 Down Bag. Its vertical baffles use Insotect Flow construction to keep down from migrating during the night. The 700-fill DownTek feathers repel water and keep their loft when exposed to moisture to protect against shoulder season conditions and hold antimicrobial as well as antibacterial properties. A no-draft collar, wedge and zipper all protect you against heat loss.
- Mountain Gear