Outdoor Vitals StormLoft Down TopQuilt 15F vs Rab Mythic Ultra 180 (32°F)
Weight and specs compared for 2026 — and which one to choose.
15°F rated down quilt with integrated pad attachment straps and draft collar. Regular size for backpackers up to 6 ft.
Full details →Ultra-lightweight 3-season sleeping bag weighing just 14.1 oz (400g) with 900-fill hydrophobic goose down and titanium technology.
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Outdoor Vitals StormLoft Down TopQuilt 15F vs Rab Mythic Ultra 180 (32°F): which should you buy?
If saving weight is your priority, the Rab Mythic Ultra 180 (32°F) wins — at 400 g it is 295 g (42%) lighter than the Outdoor Vitals StormLoft Down TopQuilt 15F (695 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.