Neutrino Sleeping Bag: 20F Down - Women's

40% OFF

$405.00

$675.00Save $270.00 (40%)

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Price Historylast 12 days

Low $405.00 · High $472.50. Hover the line to see each change.

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The current price has held for 4 days.
Across the 22 Sleeping Gear deals we’re tracking right now, the median discount is 36% — this deal’s 40% off is right around that mark.

Based on prices we’ve recorded from Backcountry since August 2026, refreshed several times daily.

About this product

The Rab Neutrino 20F is a women's tapered mummy sleeping bag designed for backpacking and weekend camping, with a temperature rating of -6.67C (20F) that suits shoulder-season and spring alpine use. Its 800-fill-power, RDS-certified goose down is treated with a Grangers PFC-free hydrophobic finish to resist moisture, and the packed weight comes in at just 400 grams (claimed weight 1 lb 13.98 oz) with a fill weight of 14.1 oz. The face fabric is 10D Pertex Quantum ripstop nylon with a PFC-free DWR finish, while the panels step up to 20D Pertex Quantum for added durability, and the lining is 100% recycled nylon. Sidewall baffles create extra room for side sleepers, and an anatomically fitted hood seals warmth around the head and neck. Internal cordlocks positioned below the collarbone reduce pressure points during sleep. A full-length draft tube runs alongside the 3/4-length zipper, and the bag packs into an included dry-bag compression sack. Storage is handled by a zippered, water-resistant base sack. Available in regular and long lengths, it carries a limited lifetime warranty.

Category: Sleeping Gear
Brand: Rab
Material: [face] 10D Pertex Quantum (100% nylon ripstop), PFC-free DWR finish, [panels] 20D Pertex Quantum (100% nylon ripstop), PFC-free DWR finish, [lining] 100% recycled nylon
Color: Zinc/Dark Pollen
Shape: tapered mummy
Degree: 20F
Zipper: 3/4-length
Activity: weekend camping, backpacking
Bag Length: regular, long
Draft Tube: full-length

What people are saying

Reviewers consistently praise the Rab Neutrino 400 Women's for its outstanding warmth-to-weight ratio, calling it one of the lightest bags in its class at around 28 ounces. The 800-fill-power Nikwax hydrophobic down and excellent compressibility are frequently highlighted, with testers noting it packs down impressively small. The women's-specific cut, with proportionally more down than the men's version, earns consistent approval. The most common criticism is that the bag runs warmer than its 20F limit rating suggests in real-world use, and some expert testers note it falls short of competitors in outright warmth for its weight. The premium price point is also flagged as a barrier, though most reviewers consider it justified by build quality and sustainability credentials.