Delivering the all-weather reliability normally associated with synthetic insulation and the lightweight, compressible performance of down, the Big Agnes Boot Jack 25 Degree sleeping bag utilizes treated down insulation to deliver all-condition backpacking performance.
The bag is insulated with 600-fill DownTek insulation. Down insulation has long been renowned for its compressible properties and efficiency in delivering an excellent warmth-to-weight ratio. The shortcoming of down has been its susceptibility to the effects of moisture, losing much of its performance qualities when wet or damp. DownTek insulation utilizes nano technology and a proprietary application process to provide water-repellency and both anti-microbial and anti-bacterial protection. A nylon rip-stop shell with a durable water-repellent treatment further protects the insulation from moisture while providing lightweight durability.
Baffled construction helps to eliminate cold spots. Other features include a thermally-efficient mummy-cut, an insulated and contoured hood, an insulated and oversized draft collar, and a draft tube that runs the length of the two-way anti-snag zipper to lock in heat and keep out cold air. Integrated internal loops enable you to use the bag with a liner (sold separately).
Available in Regular (fits to 6’ 0") and Long (6’ 6") lengths, each Big Agnes Boot Jack 25 Degree sleeping bag includes a mesh storage sack and a nylon stuff sack.