Spike Lake 15˚

Down fill traditional mummy bags designed to excel in all conditions

Our 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.
$229.95 to $239.95
100% Guarantee


Our top priority is to provide customer service as stellar as the award-winning products we create. If one of our products does not perform to your satisfaction, contact our customer service team and we will help you find gear that fits your needs.

Specs + Sizing

Bag WeightREG: 2lb 6oz / 1.08kg / LONG: 2lb 8oz / 1.13kg
Fill WeightREG: 21.5oz / 610g / LONG: 22.5oz / 640g
Compressed Bag SizeREG: 8" x 8" / 20 x 20cm / LONG: 8" x 9" / 20 x 23cm
Stuff Sack SizeREG: M 8" x 17.5" / M 20 x 45cm / LONG: M 8" x 17.5" / M 20 x 45cm


Our 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

Construction + Materials

Nylon ripstop shell fabric with a water-repellent finish

Nylon taffeta lining

Baffled construction

600 fill DownTek™ repels water while maintaining insulating value - bluesign® Certified PFC free water repellent chemistry

Here’s what other people think.

What’s in a Name?

Dinner is Served: Spike Lake sits on the east side of the Zirkel Wilderness between Lost Ranger Peak and Mount Ethel at 10,433ft. As high alpine lakes go this one sits high, blue, and full of trout. Neighboring lakes such as Rainbow, Roxy Ann, Slide, and Luna may be better known and easier to access which is why Spike Lake is legendary for being so full of trout that backpackers have been known to spend days on its banks eating nothing but scores of fish caught out of its fresh, clean water.