Big Agnes Spike Lake 15 Degree Down Sleeping Bag

Big Agnes’s traditional down mummy bags deliver high value and performance in a lightweight bag. Ideal for backpacking but versatile enough for couch surfing, they are insulated with DownTek™ and use baffle construction for efficient heat distribution. If you’re in the market for a mummy shaped bag constructed with high quality, lightweight materials these bags are your ticket to traveling fast and light.

• Big Agnes’ traditional down mummy bags deliver technical, lightweight performance to excel on and off the trail with high thermal value, compressibility, and comfort wherever you go.
• Traditional mummy shape allows for lightweight and increased thermal value
• Contoured hood follows the shape of your head for a more comfortable fit
• Oversized interior anti-draft collar
• Low-profile cordlock lets you un-cinch the hood with one hand
• Breathable shell fabric with a water repellent finish
• Anti-snag zipper for a smooth, quick zip
• 65″/165cm YKK #5 anti – snag locking zipper
• Two-way zipper
• Zipper Garage
• Liner loops
• Mate together left and right zip bags
• Mesh storage sack & nylon stuff sack
• No-draft collar and no-draft zipper
• Exterior loops for hang drying or storage
• Nylon ripstop shell fabric with a water-repellent finish
• Nylon taffeta lining
• Baffled construction
• 600 fill DownTek™ – a water repellent down that uses a PFC-Free, bluesign™ approved chemistry.