Blue Springs 20 Sleeping Bag (Synthetic) Regular Right

The Alps Mountaineering Blue Springs series sleeping bags are made with MicroX insulation. MicroX Insulation consists of multiple denier staple length fibers that have a siliconized finish for maximum insulation, loft, and compactness. It is an ultra lightweight insulation that has a tremendous weight to warmth ratio. The Blue Springs uses a 2 layer offset construction, sometimes called a bag within a bag. The contoured hood and mummy shape helps seal up your warmth and keep you warmer. If you choose the 35deg option, you will get a second zipper that allows you to zip the bag half open on each side, to allow venting or sitting up, which is a neat feature. The Blue Springs is a great backpacking sleeping bag to take along on your hikes that won't take up all the space in your pack or weigh you down.