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Ascent Down Sleeping Bag (-1°C & -9°C)

Technical warmth-retaining construction and high-lofting down, room to sleep comfortably, and unmatched ventilation. + View tech specs
  • Temp Rating
  • Size
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BEST USE: Backpacking


WEIGHT: 2lb 4oz | 1020g



Product Details
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-1°C || Ascent Down Sleeping Bag (-1°C & -9°C)
Ascent Down Sleeping Bag (-1°C & -9°C)
Description || Ascent Down Sleeping Bag (-1°C & -9°C)


Our most versatile sleeping bag available, in colder temperatures you can cinch down the technical hood, zip up the draft-tube protected zippers and allow the 750+ Ultra-Dry Goose Down to keep you warm. In warmer conditions, the Free-Flow Zip system lets you unzip in different configurations for superior ventilation and even open up flat to turn the Ascent sleeping bag into a quilt on the warmest of nights. All of the above make the Ascent a true three-season backcountry bag, one of very few on the market. Close the snaps at the shoulders, open the footbox zipper and wear the Ascent at camp - hardcore adventures don't have to be hard all the time.

Design Details

Free flow section logo
Customize your comfort with precision

Customize your comfort with precision

Unzip, unfold, and effortlessly tweak your airflow and sleeping positions as you adapt to changing temperatures and preferences

Stay in sync with your surroundings

Stay in sync with your surroundings

Seamlessly transition from a cocoon of warmth to an open vista of fresh air. Transform your sleeping bag to a quilt, two bags coupled together or back to a standard setup

Move around the campsite with ease

Move around the campsite with ease

With Free Flow, your sleeping bag becomes your trusted companion as you relax, wander about and bask in the great outdoors. It's more than a sleeping bag—it's an extension of your adventure

Technical Features


Tech specs

  • Best Use
  • Comes With
    Ultra-Sil™ Compression Bag & Storage Cell
  • Insulation
    RDS certified, 750+ PFC free Ultra-Dry Down
  • Shape
  • Zip Options
    Free-Flow zipper system
-9°C Regular-9°C Long-1°C Regular-1°C Long

Frequently Asked questions

Is the Ascent suitable for colder weather?

Yes - the -9°C/15°F version has high-lofting down, a technical hood and draft tubes that make it great for extended three-season use.

Is the Ascent comfortable in warmer weather?

Yes! The Free-Flow zippers can be opened sequentially for ventilation or to open the bag completely flat as a quilt.

Can the Ascent be zipped to another sleeping bag?

Yes - the Unisex Ascent can be coupled with a Women's Ascent, or zipped together with most STS Women's sleeping bags

Shipping & Returns

Free  express delivery in Australia for orders over $49.99*.

For all other orders under $49.99, we charge a flat fee of $10.00 for delivery in Australia. 

For more details, check out our Shipping Policy.

We do not ship to an address outside of Australia.  

If you are not entirely satisfied with your order, you may be entitled to a refund of the purchase price of the Product. For more details, please check out our Refund Policy.

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