Compared across 10 stores. Prices are checked against each store and labelled with when.
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The Marmot Hydrogen 30 is a mummy-shaped down sleeping bag rated to 30°F, built around 800-fill down and a water-resistant shell. At roughly 1 lb it sits among the lightest bags in its temperature class, which is the main reason backpackers pick it. The trade-off is a slim cut and thin insulation that suit mild nights and weight-conscious trips rather than cold sleepers or shoulder-season camping. Rivals in this class offer similar warmth at similar weight, but few undercut it on packed size.
In stockShips from abroad · duties may apply
In stockShips from abroad · duties may apply
In stock
In stock
In stockShips from abroad · duties may apply
In stockShips from abroad · duties may apply
In stockShips from abroad · duties may apply
In stock
In stock
In stock
Lowest price we've seen: $336.08 on Nov 13 at BananaFingers. Tracked across 10 stores since Nov 13.
Owners praise the Hydrogen 30 as a genuinely light bag that packs small and keeps them comfortable on summer trips. Most criticism centers on the snug fit and on the rating being optimistic once temperatures drop toward freezing.
The Marmot Hydrogen 30 is a mummy-shaped sleeping bag rated to 30° F. It is filled with 800 fill power insulation and weighs 1 lb.
The bag is water resistant. It has a pocket and comes with a stuff sack for packing.
