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FlyLite 36°F Sleeping Bag by Western Mountaineering

FlyLite 36°F Sleeping Bag by Western Mountaineering

Garage Grown Gear · Western Mountaineering · price last verified 15h ago

$520.00
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About this product

Ships in 1-2 business days | Based in San Jose, CA | Est. 1970

The lightest-weight down sleeping bag that is fully baffled. Summertime perfection!

Western Mountaineering designed their  FlyLite down sleeping bag as a product to celebrate their 50-year commitment to manufacturing the lightest, most compressible sleeping bags in the world. They feel that this sleeping bag is a product to show the global lightweight gear community (triple crown thru-hikers, trail runners, bike packers, and friends with cool names like “Psycho Haiko”) that they have been listening and taking feedback into consideration. This effort has resulted in the world's lightest weight down sleeping bag that is fully baffled (i.e. no quilted/sewn-through construction). 

The tiny micro baffles create just enough separation between the lining material and the outer shell fabric to eliminate cold spots. 10 denier fabric lining and 10 denier nylon taffeta shell fabric with C-zero DWR, with the finest polish 850+ goose down, and a super light #3 YKK half zipper all contribute to the impressive specifications and performance. This bag weighs just over 14 ounces | 400 grams in the regular length and packs down to the size of a Nalgene bottle. 

Features:

• Amazingly light and compressible

• Fully baffled construction

• Insulated top collar

• Insulated draft tube

• No sewn-through seams = no cold spots

• 10 denier nylon shell fabric and lining

• Lightweight half length #3 coil zipper

Includes:

Specs

Weight
652 g

Price history

$520.00 is the lowest price we have recorded for this item across 44 checks since Sep 20, 2026. The highest was $555.00.

$520$555

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Published Sep 23, 2026 · Prices are as seen at source and may change.