Sleep easy when you visit wild and rugged places with the Big Agnes Fish Hawk 30 Degree Down Sleeping Bag. At first glance you'll see the Fish Hawk isn't your standard sleeping bag. In what Big Agnes is calling its Contour shape, the bag is slightly roomier across the shoulders, allowing you to easily roll over or sleep on your side. Where the Fish Hawk really shines, though, is with its hydrophobic DownTek insulation. This technology marries the benefit of down with the dependability of synthetic insulation. The treated down fibers will resist moisture so the bag will maintain its insulating properties even when wet. On top of that, the outer fabric is treated with a water resistant finish to further protect against water. In addition to its roomy Contour shape, the Fish Hawk also totes several other features to make your backcountry sleeping experience that much more comfortable. The back of the bag is fitted with a full length pad sleeve, which allows you to secure the bag to your sleeping pad. This means no more waking up with your sleeping pad at arms length while you're snuggled up against the cold ground. A soft and breathable polyester lining helps keep your temperature regulated, while a draft collar and tube prevent warm air from escaping throughout the night. The Fish Hawk comes with a nylon stuff sack and a mesh storage sack, so you can keep that down lofty between backpacking trips.