Talus Series

A down sleeping bag with a relaxed shape to let your legs breath

$339.00 – $419.00

Size Guide
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Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. Unisex sleeping bags list the Lower Limit which is the lowest temperature rating that an average male sleeper would be comfortable in.  Our women’s sleeping bags list the Comfort Limit, which is the lowest temperature rating an average female sleeper should be comfortable. The comfort and lower limit temperature ratings are listed in the features table on the product page. 

For example, a unisex sleeping bag that shows a lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF while a woman would be comfortable down to the air temperature of 30ºF, the comfort limit. Men and women should always sleep in a layer of long underwear and use a sleeping mat.

Here’s a basic categorization of appropriate use, based on temperatures:
Summer:   >+35ºF
3-Season:   +10 to +35ºF
Winter:   <10ºF

There’s a huge variety of factors that can impact sleeping bag warmth, so these ratings are not guarantees. We always recommend choosing a bag that is a few degrees colder than you plan on going out in (choosing a 23ºF bag for 27ºF nights). If you have any questions about which temperature you should select, or how to improve your warmth in a sleep system, reach out to us on our contact page any time.


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The Talus™ series down sleeping bag collection is a superb backcountry sleeping bag for trekking, travel, hiking, snow camping, ski touring and more. The Talus™ bags are packed with technical features like 750+ loft RDS certified ULTRADRY Down™a technical hood with draft collar, a draft tube along the side zipper and an anatomically tapered foot box. All these features work together to retain maximum warmth during your slumber. These relaxed mummy shaped bags employ hidden drawcords and a security pocket for convenience and use the 2D NanoShell™ outer fabric for optimum moisture management. Employing a 20D high thread-count soft-touch nylon liner fabric, this is a super comfortable option for all seasons, depending on your selection of Talus I (23F), Talus II (14F) or Talus III (1F).


Packed Size Comparison

23°F: 5.5 L ≈ A large melon, but not edible
14°F: 7.1 L ≈ Two halves of a rolled yoga mat side by side
1°F: 9.15 L ≈ 6 pack of toilet paper. Un-quilted.


23°F: 1 lb 15 oz ≈ Lighter than two paper towel rolls
14°F: 2 lbs 5 oz ≈ A quart of cookie dough ice cream
1°F: 2 lbs 11 oz ≈ A wide mouth water bottle filled with champagne


23°F: 3 Season - take this bag out in spring, summer and fall, no matter where you are.
14°F: 3.5 Season - take this bag out in spring, summer and fall, no matter where you are. It will also keep you warm on mild winter nights.

1°F: 4 Season - take this bag out from fall to spring, with few cold weather exceptions. It will also keep you warm on mild winter nights.


The perfect mummy shape, thermally efficient but still roomy and comfortable for your legs and shoulders.


  • RDS certified ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down
  • 2D NanoShell which gives this bag a high degree of breathability along with a high level of water repellency.
  • Relaxed mummy with a differential cut shell with 3D side walls
  • 2-way YKK® #5 zipper
  • Will zip to any Trek, Latitude™ or Talus™ Women's sleeping bag to form a snug double sleeping bag
  • Neck draft tube with dual elastic adjustment
  • Internal zipper pocket
  • Includes lightweight Ultra-Sil compression bag and a combined storage cell/laundry bag