Women's Latitude Series

One sleeping bag to rule them all and it's just for women

$379.00 – $439.00

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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 at which 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. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. Men and women should always sleep in a layer of long underwear and use a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

Here’s a basic categorization of appropriate use, based on rated temperatures:
Summer:   >+35ºF / +3°C
3-Season:   +10 to +35ºF / -15° to 0°C
Winter:   <10ºF / -15°C

A huge variety of factors can impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag as one element in a sleep system which also includes an appropriately insulating sleeping pad and a liner. For instance - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C nights, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner. If you have any questions about which temperature sleeping bag / R-Value sleeping mat you should select, or how to improve your warmth in a sleep system, reach out to us via our contact page any time.


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The Women's Latitude™ Series of down sleeping bags have been designed especially for female adventurers. Just like the Women's Trek™ & Women's Talus™, they're filled with more down strategically dispersed in the torso and foot areas, the hip area is roomier, and we use a layer of Thermolite® in the lower two baffles of the foot box, to keep ankles and feet warm. Filled with 750+ loft RDS certified ULTRADRY Down™, this range incorporates a full-length draft tube and neck collar for maximum warmth retention. It's a versatile tapered rectangular shape making it perfect for travel, backpacking, hiking and camping adventures in milder temperatures.


Packed Size Comparison

23°F: 7.6 L ≈ 6 pack of toilet paper. Un-quilted.
15°F: 9.4 L ≈ 6 pack of toilet paper. Un-quilted.


23°F: 2 lbs 6 oz ≈ A quart of cookie dough ice cream
15°F: 2 lbs 14 oz ≈ A wide mouth water bottle filled with champagne


23°F: 3 Season - Take this bag out in fall, winter, and spring, except for bitterly cold winter nights.
15°F: 3.5 Season - Comfort for fall, some winter, and all of spring. Perfect for summer when used as a quilt.


Roomy, lots of room to roll, curl and adjust all night long.


  • 2D NanoShell™ which gives this bag a high degree of breathability along with a high level of water repellency.
  • RDS certified ULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck Down
  • Women's specific cut: narrower in the shoulders but wider in the hip section.
  • Women's specific insulation: Extra down and a layer of THERMOLITE® in the bottom two baffles for extra warmth in the feet.
  • Will zip to any Basecamp, Trek, Latitude™ or Talus sleeping bag to form a snug double sleeping bag
  • Full-length YKK® #5 side and foot zip
  • Oversized neck-collar, hood seal, and oversized zipper draft tube
  • Internal security pocket
  • Includes lightweight Ultra-Sil compression bag and a combined storage cell/laundry bag