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Katabatic Gear Alsek 22F Sleeping Quilt vs Katabatic Gear Flex 22 Quilt

Weight and specs compared for 2026 — and which one to choose.

Katabatic Gear Alsek 22F Sleeping Quilt is the lighter option — 16 g lighter than the Katabatic Gear Flex 22 Quilt (2% less weight). If grams matter to you, that is the one to beat.
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Spec Katabatic Gear Alsek 22F Sleeping Quilt Katabatic Gear Flex 22 Quilt
Weight 630 g · 0.630 kg · 1.39 lb 646 g · 0.646 kg · 1.42 lb
size Regular (6'), 900fp goose down, total weight
Brand Katabatic Gear Katabatic Gear
Category Sleep System Sleep System
Katabatic Gear Alsek 22F Sleeping Quilt
630 g

3-season ultralight quilt at 22.2oz. 900 fill ExpedDRY goose down with Pertex Quantum Ripstop shell.

See it in your base weight → Full details →
Katabatic Gear Flex 22 Quilt
646 g

22°F down quilt with 900-fill-power goose down and adjustable footbox. Regular size. Highly packable and ultralight for 3-season backpacking.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

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Katabatic Gear Alsek 22F Sleeping Quilt vs Katabatic Gear Flex 22 Quilt: which should you buy?

If saving weight is your priority, the Katabatic Gear Alsek 22F Sleeping Quilt wins — at 630 g it is 16 g (2%) lighter than the Katabatic Gear Flex 22 Quilt (646 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.

More sleep system comparisons