Micro Series

This down sleeping bag has serious warmth and an unbelievable packed size

$349.00 – $419.00

Size Guide
What Is This

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.


Other ways to purchase

No Online Retailers Stocking Current Selection


Versatility, lightweight and a small compact size all in one package. That's what Micro™ down sleeping bags bring to backcountry sleeping comfort. The Micro is a fully featured bag that boasts an incredible warmth-to-weight ratio. Filled with 850+ loft RDS certified ULTRADRY Down™ and using 2D NanoShell™ outer fabric for moisture management, this versatile option is ideal for ultra-lightweight backpacking, travel, hiking, camping, cycle touring and more. A drawcord at the feet cinches the bag in tight to create a regular sleeping bag in cooler temperatures and can be let out to form a camping quilt or blanket in mild temperatures. The hood is adjustable creating many sleeping scenarios in a range of conditions.


Packed Size Comparison

36°F: 4.53 L ≈ Loaf of sliced bread
28°F: 5.01 L ≈ Loaf of sliced bread plus one sandwich


36°F: 1 lb 6 oz ≈ 20oz cup of coffee
28°F: 1 lb 10 oz ≈ Carton of large eggs


36°F: 2.5 Season - take this bag out late spring into early fall, no matter where you are.
28°F: 3 Season - great for fall and all of spring. Perfect for summer when used as a quilt


Slim, there's not a lot of extra room for wiggling


  • 2D NanoShell which gives this bag a high degree of breathability along with a high level of water repellency
  • RDS certified ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down
  • Zipper draft tube with anti-snag
  • Hood drawcord with dual adjustment
  • Full-length YKK® #5 side zip
  • Drawcord foot closure
  • Includes lightweight Ultra-Sil™ compression bag and a combined storage cell/laundry bag