Marmot CWM Sleeping Bags - Men's Clear Blue/Black Center-Zip. These Backpacking Sleeping Bags crafted by the outdoor experts at Marmot contain a special waterproof and breathable fabric that keeps the elements out and the warmth in for a cozy night's sleep. This Marmot CWM Insulated Sleeping Bag is filled with certified 800 fill power goose down for the warmest and most luxurious experience as possible. For further comfort this bag contains several reinforced linings and baffles that wrap your body in its cloud-like texture and will leave you feeling like you woke up in your own bed in the morning. For all of your artic adventures you need this Marmot CWM Goose Down Sleeping Bag that will keep you nice and toasty even when the surrounding temperatures are at -40 degrees F. Specifications for Marmot CWM Sleeping Bags - Men's: Manufacturer: Marmot Color: Clear Blue/Black Temperature Rating: -40 F / -40 C Zipper Type: Center Gender: Male Age Group: Adults Features of Marmot CWM Sleeping Bags - Men's Filled and finished with certified 800-fill-power goose down Pertex Shield fabric with waterproof windproof breathable membrane Internal hood and draft collar cord cinch to prevent heat loss Package Contents: Marmot CWM Sleeping Bags - Men's Marmot 37040-3567-CZ: CWM Sleeping Bags - Men's Clear Blue/Black Center-Zip Marmot 37050-3567-CZ: CWM Sleeping Bags - Men's Clear Blue/Black Center-Zip Long Marmot 37040-3567-CZ: CWM Sleeping Bags - Men's Clear Blue/Black Center-Zip