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Katabatic Gear Flex 15°F Quilt vs Zpacks Summer Quilt

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

Zpacks Summer Quilt is the lighter option — 479 g lighter than the Katabatic Gear Flex 15°F Quilt (66% less weight). If grams matter to you, that is the one to beat.
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Spec Katabatic Gear Flex 15°F Quilt Zpacks Summer Quilt
Weight 723 g · 0.723 kg · 1.59 lb 244 g · 0.244 kg · 0.54 lb
Brand Katabatic Gear Zpacks
Category Sleep System Sleep System
Katabatic Gear Flex 15°F Quilt
723 g

Lightweight three-season quilt with 900 fill power goose down, patented pad attachment system, and down-filled collar. Regular size (6'), includes stuff sack an...

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Zpacks Summer Quilt
244 g

Minimal 8.6-ounce quilt for warm weather camping. Doubles as winter sleeping bag liner.

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Katabatic Gear Flex 15°F Quilt vs Zpacks Summer Quilt: which should you buy?

If saving weight is your priority, the Zpacks Summer Quilt wins — at 244 g it is 479 g (66%) lighter than the Katabatic Gear Flex 15°F Quilt (723 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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