Katabatic Gear Flex 15°F Quilt vs Sierra Designs Nitro Quilt 20
Weight and specs compared for 2026 — and which one to choose.
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...
Ultralight down quilt at 708g. 14.8oz of 800-fill water-resistant DriDown, 20-degree rating.
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 Flex 15°F Quilt vs Sierra Designs Nitro Quilt 20: which should you buy?
If saving weight is your priority, the Sierra Designs Nitro Quilt 20 wins — at 708 g it is 15 g (2%) 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.