Big Agnes

Spike Lake 15 Downtek Sleeping Bag

The Big Agnes Spike Lake 15 Degree sleeping bag utilizes treated down insulation to deliver lightweight, compressible 3-season backpacking performance.

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As low as $229.95
or 4 installments of $57.49
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The Spike Lake 15 Degree bag is insulated with 600-fill DownTek insulation. Down insulation has long been renowned for its compressible properties and efficiency in delivering an excellent warmth-to-weight ratio. The shortcoming of down has been its susceptibility to the effects of moisture, losing much of its performance qualities when wet or damp. DownTek insulation utilizes nano technology and a proprietary application process to provide water-repellency and both anti-microbial and anti-bacterial protection. A nylon rip-stop shell further protects the insulation from moisture while providing lightweight durability.


 Designed to decrease weight and size using the traditional mummy shape
Contoured hood features a draw cord and cord lock for easy adjustment
600-fill DownTek water repellent insulation
Mate together left and right zip bags
Mesh storage sack and nylon stuff sack
Draft collar and zipper; liner loops
One hand hood cinch cordlock is simple and easy to use
Zipper garage stores zipper and eliminates Velcro
Exterior loop for hang drying and storage


 Best Use:   Backpacking
Shell Material:    Nylon Ripstop, water resistant treatment
Lining Material:   Nylon Taffeta
Insulation:   600-fill DownTek
Zipper:   Full-length, Left
Degree Rating:   15° F
Stuff Sack Size:   8 in x 17.5 in
Gender:   Unisex

* Weight / Size / Fit *
Weight:   (Reg) 2 lb 10 oz / (Long) 2 lb 12 oz
Shoulder Circumference:   (Reg) 60 in / (Long) 62 in
Hip Circumference:   (Reg) 54 in / (Long) 56 in
Max User Height:   (Reg) 6 ft / (Long) 6 ft 6 in