Big Agnes Fly Creek UL Quilt vs Katabatic Gear Alsek 22°F

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

Big Agnes Fly Creek UL Quilt is the lighter option — 20 g lighter than the Katabatic Gear Alsek 22°F (4% less weight). If grams matter to you, that is the one to beat.

Spec	Big Agnes Fly Creek UL Quilt	Katabatic Gear Alsek 22°F
Weight	434 g · 0.434 kg · 0.96 lb	454 g · 0.454 kg · 1.00 lb
Brand	Big Agnes	Katabatic Gear
Category	Sleep System	Sleep System

Big Agnes Fly Creek UL Quilt

434 g

Ultralight backpacking quilt with 850-fill DownTek water-repellent down and 227g fill weight. Packable and versatile for three-season use.

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Katabatic Gear Alsek 22°F

454 g

Premium 850-fill down sleeping quilt rated to 22°F.

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Big Agnes Fly Creek UL Quilt vs Katabatic Gear Alsek 22°F: which should you buy?

If saving weight is your priority, the Big Agnes Fly Creek UL Quilt wins — at 434 g it is 20 g (4%) lighter than the Katabatic Gear Alsek 22°F (454 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.

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