Big Agnes Spike Lake 15

Mountain Gear says:
Big Agnes' Spike Lake 15deg mummy bag delivers high value and performance in a lightweight bag. Ideal for backpacking but versatile enough for couch surfing, it's insulated with DownTek and uses baffle construction for efficient heat distribution. If you're in the market for a mummy shaped bag constructed with high quality, lightweight materials this bag is your ticket to traveling fast and light.