REI Co-op Radiant 19 Sleeping Bag - Men's

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This 3-season, regular-fit sleeping bag features 600-fill-power water-repellent down with a relaxed shoulder-to-hip fit to give multiposition sleepers a comfortable night's sleep.


  • With a European Norm (EN) lower-limit rating of 19 degrees F, this bag is suitable for 3-season use
  • Water-repellent 600-fill-power duck down offers excellent loft and warmth—and is certified to the Responsible Down Standard (RDS) and bluesign® approved
  • Ripstop nylon shell also features a durable water repellent (DWR) finish to further protect the down fill
  • Relaxed shoulder-to-hip fit is comfortable for multiposition sleepers
  • Contoured hood, insulated face muffler and full-length draft tube all work to keep warmth in
  • Differentiated hood and neck drawcords simplify adjustments; antisnag zipper slider works smoothly
  • Bag has a stash pocket under the collar
  • Pad loops let you strap the bag to your sleeping pad (straps and pad not included)
  • Most REI backpacking bags can be zipped to other REI backpacking bags; women's bags zip on the right, unisex on the left
  • Nylon stuff sack and mesh/nylon storage bag included


Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Our backpacking bags are rated for temperature according to an independent testing protocol: International Organization for Standardization (ISO) 23537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
View all REI Co-op Backpacking Sleeping Bags

Technical Specs

Best Use


Tested Lower Limit

19 degrees (F) - EN

Tested Comfort

32 degrees (F) - EN

Temperature Rating (F)

19 degrees (F)

Temperature Rating (C)

-7.2 degrees (C)


Ripstop nylon

Zipper Location


Insulation Type


Water-Resistant Down



600-fill-power duck down (RDS certified and bluesign® approved)


Polyester taffeta

Sleeping Bag Shape


Stuff Sack Size

8.25 x 18 inches




Down certified to the Responsible Down Standard (RDS)

Contains materials that meet the bluesign® criteria

From a Climate Neutral Certified brand

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