Therm-A-Rest Boost Sleeping Bag

Description 

The Boost 650 sleeping bag is designed for personalized comfort and adaptability, offering a spacious semi-rectangular shape that allows freedom of movement and side-sleeping comfort. Its innovative WarmZip center zipper transforms the bag into a thermally efficient mummy shape, boosting warmth by up to 10°F (6°C) when needed. Features like a puffy draft collar, cinchable hood, and draft tubes enhance insulation, while convenient arm holes allow for multitasking, ventilation, or sleeping with your arms out. Despite its comfort-focused design, the Boost 650 remains lightweight and packable, using zoned 650-fill hydrophobic down and recycled nylon materials to deliver high performance in varied backcountry conditions—even when wet.

Specs

Weight	Regular: 2 lb 11 oz Regular Wide: 3 lb 5 oz Long: 3 lb 1 oz Long Wide: 3 lb 13 oz
Length	Regular/Regular Wide: 80 in Long/Long Wide: 85 in
Fits	Regular/Regular Wide: 72 in Long/Long Wide: 78 in
Girth Shoulder	Regular: 64 in Regular Wide: 76 in Long: 65 in Long Wide: 77 in
Girth Hip	Regular: 60 in Regular Wide: 74 in Long: 61 in Long Wide: 75 in
Girth Foot Box	61 in
Packed Dimensions	Regular: 12.5" x 7.5" Regular Wide: 13.5" x 7.5" Long: 13" x 7.5" Long Wide: 14.5" x 7.5"
Comfort Rating	32° F
Fill Material	650 Fill Duck PFAS Free Hydrophobic Down, RDS
Fill Weight	Regular: 1 lb 7 oz Regular Wide: 2 lbs Long: 1 lb 10 oz Long Wide: 2 lb 4 oz
Shell Fabric	20D 100% Recycled Nylon Rip Stop
Lining Fabric	20D 100% Recycled Nylon Rip Stop
Manufacturer Warranty	2-Year Limited