Marmot NanoWave 45F Degree Mummy Sleeping Bag - Brick Red - When space and weight are at a premium (think biking trips, kayak treks, and epic backpacking), you want a super packable, stuffable sleeping bag that'll fit into sterns, bike panniers, and bags. You need the lightweight, PFC-free, mummy-style NanoWave 45 Sleeping Bag to keep you comfortable around 45F. Synthetic SpiraFil High Loft Insulation will keep you warm even when things get wet. The full-length zipper provides easy ventilation. Two-way zippers plus a snagless draft tube prevent air from sneaking in and fabric from catching. Features: Spirafil High Loft Insulation for Maximum warmth and durability Lightweight, Highly Compressible Bag Ideal When Space and Weight are at Premium Full Length Locking YKK Two Way Zipper EN Tested Snagless Draft Tube "Feely" Draw Cords Two Way Zipper Sliders Blanket Construction Two Hang Loops Zipper Garage Compression Stuff Sack