Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Footbox, zip open with model's feet out Zipped to women's bag Packed in compression sack and held in hand as an idea of stowed size Stowed in storage bag
Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Footbox, zip open with model's feet out Zipped to women's bag Packed in compression sack and held in hand as an idea of stowed size Stowed in storage bag

Ascent -1 Regular Down Sleeping Bag

SKU: STS-10013-RNFTGN

Designed for comfort and adaptability and suited to a wide range of adventures. View full details
Colour: RAIN FOREST GREEN

$749.99

or 4 interest-free payments of $187.49 with
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The Ascent -1 Down Sleeping Bag is a versatile bag designed for comfort and adaptability and suited to a wide range of adventures. It features ULTRA-DRY 750+ loft goose down, 20D recycled polyester shell and lining, a non-PFC durable water repellent finish and a triple-zip Free Flow Zip System that allows for multiple configurations and ventilation, including opening the bag right out. Comes with a compression sack and a storage cell.
Packability
Ultra Compact
Compact
Mid Size
Warmth
Summer
Multi-season
Alpine
Weight
Ultralight
Lightweight
Midweight

The Ascent is a great all rounder sleeping bag is rated to keep you toasty in a light frost. With 750 loft down they are packable enough to throw in your backpack, and also appropriate for car camping adventures. With the ability to open the bag up for use as a blanked, but two zips, one for the footbox, and the other along the side where you can zip the male and female bags together. The hooded bag is roomy with its rectangular shape and internal zip pocket on the inside for overnight storage of small items you want to keep close at hand. The Ascent is a great all rounder sleeping bag is rated to keep you toasty in a light frost. If you are particularly susceptible to the cold, it may be worth pairing with a liner

Fit Tip: N/A

Steph
Steph - Bivouac Team Member
  • Relaxed Mummy Fit: A more relaxed yet tapered mummy fit with high thermal performance
  • Lightweight 100% recycled 20D nylon shell with a non-PFC DWR finish to protect against wind and moisture and a 20D recycled nylon liner for greater comfort
  • bluesign®-approved fabrics
  • 750+ Fill Power, RDS-certified, Goose Down with ULTRA-DRY Down treatment for improved water resistance in damp conditions
  • Free Flow Zip System for reliable, snag-free operation and minimal weight:
    • Primary zip: full-length #5 with zip-plow and two sliders
    • Secondary zip: 1/2-length #3 with zip-plow and two sliders
    • Footbox zip: #5 with two sliders
  • Vertical chest baffles, horizontal baffles in the lower half and base, box wall baffle construction throughout
  • Generous fitted hood with two soft touch adjustments and fits a Sea to Summit regular pillow
  • Fitted front draft collar: scalloped over the neck and oversized at the shoulders
  • Single, down-filled draft tube along the top of zips
  • Internal pocket for phone / GPS / valuables
  • Pairs with women's Sea to Summit bags for a snug double sleeping bag
  • QuiltLock System allows integration with Sea to Summit quilts
  • Comes with an Ultra-Sil compression bag and a storage cell
Compression
8 Litres (both sizes)
Fill
ULTRA-DRY Goose Down 750+ Loft, RDS certified
Fill weight
300g (Regular), 343g (Long)
Fits to
185cm (Regular), 198cm (Long)
Foot width
59.5cm (Regular), 64.5cm (Long)
Inner
20D recycled polyester with a non-PFC DWR finish
Outer
20D recycled polyester, 10D nylon hood and footbox
Shoulder width
78cm (Regular), 84cm (Long)
Temp rating
3°C comfort rating woman / minus 1°C Lower comfort rating for men; Temperature rated in accordance with ISO 23537-1:2022

ULTRA-DRY Downâ„¢: With the introduction of water-repellent ULTRA-DRY Downâ„¢ Seat to Summit have virtually eliminated the negative effects moisture has on down. The ULTRA-DRY Downâ„¢ water-repellent treatment protects the down from external moisture and condensation from inside the bag. It is a permanent (no loss of treatment effect has been seen in over 14 wash cycles) Nano-level water repellent polymer treatment applied to Sea to Summit high loft, high quality down. The Nano-thin treatment vastly improves the down's reaction to water without effecting its weight or loft performance. ULTRA-DRY Downâ„¢ retains over 60% more loft and absorbs 30% less moisture when compared with untreated down. Sea to Summit sleeping bags dry out 60% faster than bags with untreated down. The Nano-level treatment also inhibits bacterial and microbial growth, which makes Sea to Summit sleeping bags more hygienic and improves their lifespan.

Responsible Down Standard (RDS): The RDS is helping to shift the entire down and feather industry towards more humane animal rearing and handling practices. Overseen by the industry leading Textile Exchange, the RDS requires independent, third party assessments of all aspects of animal rearing and handling throughout the entire supply chain. By only using down that meets the audited requirements of the RDS we can have confidence that each phase of the collection process has been completed with the welfare and ethical treatment of waterfowl in mind. To find out more about how the RDS is improving animal welfare during down collection, please visit responsibledown.org (link will open a new window).

Need help? Get in touch

How long will my order take to arrive?

Standard NZ orders are sent via NZ Post Overnight Delivery. Orders placed before 2pm are usually delivered the next working day. Rural deliveries and some remote areas may take a little longer. Oversized items like large packs or tents can take 5–9 working days.

How much does shipping cost?

Shipping is free on New Zealand orders over $150. Orders under $150 have a flat $5 shipping fee. Oversized items incur an additional shipping charge due to their size and weight.

Can I return or exchange an item if it doesn’t fit?

Yes. New and unused items can be returned within 30 days for a refund or exchange, provided they’re in original condition with tags and packaging attached. If you’re unsure about sizing before ordering, our team is always happy to help. Customers are responsible for return shipping costs, but we’ll cover the freight cost of sending out exchanged items.

Can I click & collect my order?

Yes - we offer free Click & Collect from all Bivouac stores. If your item is already available in your selected store, it may be ready the same day. Some items may need to be transferred between stores and can take 3–5 working days. We’ll contact you as soon as your order is ready to collect.

Can I track my order?

Yes. Once your order has been dispatched, you’ll receive a Shipping Confirmation email with your NZ Post tracking link and details. All online orders are fully tracked so you can follow your delivery from dispatch through to arrival.

Ascent -1 Regular Down Sleeping Bag

Ascent -1 Regular Down Sleeping Bag

RAIN FOREST GREEN

$749.99

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Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag Ascent -1 Regular Down Sleeping Bag
Ascent -1 Regular Down Sleeping Bag
Designed for comfort and adaptability and suited to a wide range of adventures
Packability
Ultra Compact
Compact
Mid Size
Warmth
Summer
Multi-season
Alpine
Weight
Ultralight
Lightweight
Midweight

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