Feathered Friends Flicker UL 20 vs Marmot Hydrogen 30°F

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

Marmot Hydrogen 30°F is the lighter option — 5 g lighter than the Feathered Friends Flicker UL 20 (1% less weight). If grams matter to you, that is the one to beat.

Spec	Feathered Friends Flicker UL 20	Marmot Hydrogen 30°F
Weight	714 g · 0.714 kg · 1.57 lb	709 g · 0.709 kg · 1.56 lb
Brand	Feathered Friends	Marmot
Category	Sleep System	Sleep System

Feathered Friends Flicker UL 20

714 g

Hoodless 20F quilt/bag hybrid with 950+ fill down, full-length zip and cinchable footbox; 10D shell (regular).

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Marmot Hydrogen 30°F

709 g

Ultralight 800-fill down sleeping bag rated to 30°F.

Full details →

Feathered Friends Flicker UL 20 vs Marmot Hydrogen 30°F: which should you buy?

If saving weight is your priority, the Marmot Hydrogen 30°F wins — at 709 g it is 5 g (1%) lighter than the Feathered Friends Flicker UL 20 (714 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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