The ALPS Mountaineering Cliffside Sleeping Bag uses 700-fill-power duck down insulation for excellent warmth and compression on backpacking trips throughout spring, summer and fall.
The ALPS Mountaineering Cliffside Sleeping Bag is rated to keep you warm down to about 20°F for 3-season backpacking use
Down insulation delivers an unsurpassed warmth-to-weight ratio; it’s one of the lightest, warmest and most compressible insulations available