Built big and warm
69 inches of girth at the shoulders and 48 inches of girth at the feet leave you plenty of room to spread out or warm up your gear. Waking up to put on cold boot liners and layers sucks, so don’t. Just stuff them in the lower portion of the Bristlecone for a more pleasant morning, even on the coldest days.
Speaking of the coldest days, the Bristlecone is crammed with 42 oz. of 850+ down to keep you warm. Fully fluffed that equates to a simmering 8.5 inches of loft to keep you toasty down to -10 degrees fahrenheit. A sideblock baffle at the zipper keeps heat from escaping through the zipper while a down collar stops heat escaping from the neck area without feeling claustrophobic. On nights when it’s not that cold, the bag unzips to lie flat as a blanket or can be zipped to another bag.
If you’re hard on sleeping bags, you’ve got nothing to worry about with the Bristlecone MF. Western’s microfiber fabric is very water resistant because it is constructed with an extremely high thread count of dense yarns. Each microfiber yarn has more filaments than a normal nylon or polyester yarn of equivalent size. Woven into high thread count material, it becomes a fabric that really keeps wind and water out. Since there is no coating or laminate on the material, it is highly breathable. The fabric construction is responsible for weatherproofness, it's not something that can wear off, wash out, or delaminate. This is the most technologically advanced non-laminated weather resistant fabric available. Western’s Bristlecone will keep you warm and dry through years of use.
Features and Benefits
• Extremely breathable yet water resistant Microlite XP shell offers protection from condensation and frost.
• 6" Spacing/Side Baffle keeps insulation where it belongs.
• 69"/48" Shoulder/Foot Girth leaves loads of room for bigger folks or more gear.
• Full Down Collar ensures that there are no cold spots.
• Draft Tube seals heat in at the zipper.
• 8.5" Loft, -10° F rating
• 42 oz. Down Fill.
• Just 3 lbs. 15 oz. total weight.
• Made in the USA.