With enough warmth for cooler evenings, and a light and compact design for packability – the Hydrogen Sleeping Bag from Marmot is ideal if space and weight are at a premium.

The Hydrogen has a mummy shape to trap heat, with an anatomically designed footbox with wrap-around construction for warmth. To save on weight, this bag is made from an ultralight 20D nylon ripstop fabric and is filled with certified 800+ Fill Power Goose Down which has a Down Defender treatment to improve its water resistance in wet conditions. The smooth curved baffles reduce down migration and the multi-baffle hood with a drawcord keeps your head snug.

EN tested for reliability, the Hydrogen has a comfort temperature rating of 0.9 °C. The fold-down second zipper provides ventilation and access, while the main zipper anti-snag slider reduces snagging. The Hydrogen Sleeping Bag from Marmot is the super-packable choice for your lightweight trips.

• Filled with certified 800+ Fill Power Goose Down
• EN 13537 temperature tested 
• Full length locking YKK two-way zipper with zip guard slider
• Smooth curved baffles reduce down movement
• Down defender improves water resistance in wet conditions
• Multi-baffle hood with drawcord
• Internal stash pocket
• Snagless insulated draft tube
• Two hang loops
• Stuff and storage sack included