Rab Solar Ultra 2 Sleeping Bag - Men's

$230.00to $245.00
Color: Gray
please select a Size
Shipping restrictions may apply.

Durable and dependable—even in the cold and damp—the men's Rab Solar Ultra 2 sleeping bag combines advanced insulation with Thermo Ionic Lining Technology (TILT) for dramatic heat retention.


  • Shell fabric is 38 g, 20-denier Atmos™ recycled ripstop nylon with a fluorocarbon-free durable water repellent (DWR) finish
  • Lining is 41 g, 20-denier Atmos recycled ripstop nylon with a fluorocarbon-free DWR finish
  • Upper is insulated with recycled Stratus synthetic sheet insulation in a triple-layer construction: 100 g/100 g/40 g polyester (100% recycled)
  • Base is insulated with recycled Stratus synthetic sheet insulation in a dual-layer blanket construction: 40 g/40 g polyester (100% recycled)
  • Internal upper scrim is 100% polyester and features TILT, an aluminum coating that reflects body warmth to reduce radiant heat loss
  • Triple-layer concertina blanket construction on upper for improved loft and warmth
  • Elasticized internal quilting helps to draw insulation toward your body and eliminate cold spots
  • Reduced-volume hood offers better heat retention


Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. 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. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
View all Rab Backpacking Sleeping Bags

Technical Specs

Best Use


Tested Lower Limit

25 degrees (F) - ISO

Tested Comfort

36 degrees (F) - ISO

Temperature Rating (F)

25 degrees (F)

Temperature Rating (C)

-3.9 degrees (C)


2 lbs. 8 oz.



Zipper Location


Insulation Type



Stratus synthetic sheet recycled polyester



Sleeping Bag Shape


Fits Up To (in.)

Regular - Left Zip: 74.8 inches

Long - Left Zip: 78.8 inches

Shoulder Girth (in.)

Regular - Left Zip: 55.9 inches

Long - Left Zip: 56.7 inches

Hip Girth (in.)

Regular - Left Zip: 47.2 inches

Long - Left Zip: 48 inches

Stuff Sack Size

8.6 x 15.7 inches




Contains recycled materials

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