Feathered Friends Swallow YF 20°F vs Western Mountaineering HighLite 35F
Weight and specs compared for 2026 — and which one to choose.
Premium 950-fill down sleeping bag rated to 20°F.
Full details →Ultralight 850-fill ethical down mummy bag rated 35F with 7D ripstop nylon shell. Best-in-class warmth-to-weight ratio for three-season use.
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Feathered Friends Swallow YF 20°F vs Western Mountaineering HighLite 35F: which should you buy?
If saving weight is your priority, the Western Mountaineering HighLite 35F wins — at 460 g it is 249 g (35%) lighter than the Feathered Friends Swallow YF 20°F (709 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest sleep system page, or browse the full gear weight database.