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Ascent Women's -1C/30F Down
-20% | TREK20
Ascent Women's -1C/30F Down + Sea To Summit

Ascent Women's -1C/30F Down

Natural down sleeping bag - Women - Ascent Women's -1C/30F Down - Sea to Summit - 2026

399,90 €

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Ascent Women's -1C/30F Down
399,90 €
delivery Home delivery from 05/06/2026
return 60 days to change your mind
Get 8,00 € off your next order.
Description

The women's Ascent -1C/30F Down sleeping bag from Sea to Summit is a 3-season sleeping bag perfect for short adventures.

This model is part of the range Trailblazer, designed to offer lightness, reliability and strength. The features of this sleeping bag allow you to use it anywhere in the world and accompany you on all your adventures. To achieve this, this sleeping bag is made from RDS-certified duck down with a fill power of 750 CUIN , which has been treated Ultra-Dry Down to make it highly durable and therefore more insulating. The padding has been placed vertically at chest level to prevent the down from moving and ensure even protection and good warmth for a comfortable temperature of 3ºC.

This model features a Double Free Flow zip for improved air circulation and ventilation when temperatures rise. There is a main zip along the entire length, as well as a second half-length zip on the other side. The zip at the feet is also a double-sided zip. A spacious design, an adjustment cord at the collar with space for a pillow, and an adjustable technical hood are all additional details that will make a difference to your comfort. The cut, specially adapted to the female body shape, will offer you unparalleled comfort. TheAscent -1C/30F Down is a warm, comfortable and adaptable sleeping bag for perfect nights from spring to autumn!

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The Ascent Women's -1C/30F Down sleeping bag for women from Sea To Summit is the perfect sleeping bag for short adventures.

This model is part of the Wayfarerrange, offering durable products that are easy to carry on your adventures. Lightness and reliability are two key qualities.

Ascent -1C/30F Down gives you the ability to use it all over the world and accompany you on all your adventures. To achieve this, this bag is made from RDS 750+ duck down and a Ultra-Dry Down treatment for better insulation and compressibility. It has vertically-positioned padding around the chest to prevent the down from moving and ensure even protection and a good supply of warmth.

This model has a two-way Free Flow zip for better air circulation and ventilation when the weather warms up. There's a main zip running the full length, and a second half-length zip on the other side. The foot zip also has two zippers. A spacious design, a drawcord adjustment at the collar with space for a pillow and the Technical Regular Hood are the extra details that will make all the difference to your comfort.

Finally, this version has a Mummy Fit shape specially designed for women, providing better thermal performance with good heat retention.

Ascent Women's -1C/30F Down is a warm, comfortable and adaptable sleeping bag for a comfortable night's sleep!

Ascent Women's -1C/30F Down
Discover related categories
Technical details
Comfort temperature
-1
Sleeping bag shape
Mummy
Insulation type
Down
Use - sleeping bag
Trekking
Overview
Brand
Sea To SummitSea To Summit-logo
Warranty
2
Year
2026
Season
Spring
Gender
Unisex
Product details
Weight (g)
893
Shoulders (cm)
76 73
Feet (cm)
55
Length (cm)
185 170
Compressed volume
10
Technical details
Composition
Nylon 20D, Duvet naturel certifié RDS
Zip side
Droit Gauche
Seasons
2 3
Combinable
No
Performance
Extreme temperature
-36
Comfort temperature limit
-8
Use type
14605 14613
Filling
Down
Fill power (cuin)
750
Other features

Footbox zipped
- Generous, fitted hood with two adjustment points
- Compatible with a pillow Sea to Summit
- Combinable
- Zip system FreeFlow
- Double collar and draw shaft
- Full-length main fastening with zip guard and 2 sliders
- Secondary closure over 1/3 of the length with zip guard and 2 sliders
- PFC-free product

Composition :
- Filling : 750 CUIN goose down
- Outer material and Lining: 20D recycled Nylon
- Hood and feet: 10D Nylon

Sizes:


Size Regular Long
Maximum user height 1.70 m 1.85 m
Shoulder width 73 cm 78 cm
Hip width 70 cm 75 cm
Foot width 55 cm 60 cm
Total weight 893 g 459 g
Filling weight 459 g 520 g
Compressed volume 13 L 13 L




Ultra Dry Down Water-repellent treatment applied to the feather. In damp conditions, it retains 60% more warmth, absorbs 30% less moisture and dries 60% faster than untreated feathers.
Responsible Down Standard - RDS The standard RDS guarantees that down and feathers come from ducks and geese that are well treated, live in good health and express their natural behaviours, without experiencing pain, fear or distress. The scope of this standard covers the entire supply chain, from breeding to the final product.
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Regular
- Maximum user height: 170cm
- Total weight: 893g
- Fill weight: 459g
- Compressed bag size: 10 L
- Shoulder width: 145cm
- Waist width: 140cm
- Feet width: 109cm

Long
- Maximum user height: 185cm
- Total weight: 1002g
- Fill weight: 520g
- Shoulder width: 155cm
- Waist width: 150cm
- Feet width: 119cm

- Comfort temperature: -1°C
- Temperature limit: -8°C
- Extreme temperature: -26°C

- Cocoon-shaped
- Foot box without zip
- Free Flow closure for better air circulation and ventilation
- 2 closure systems (1 main full-length, 1 secondary half-length)
- Adjustment cord
- Space for a Sea To Summit pillow
- Technical Regular Hood
- Mummy Fit : special women's cut

Materials:
- Filling: Goose down with waterproof Ultra Dry Down treatment
- Filling power: 750+
- PFC-free
- 20D recycled nylon shell and lining

Responsible Down Standard (RDS):
100% of the down used in our sleeping bags and duvets is independently certified according to the RDS standard (Responsible Down Standard). The RDS ensures that animal welfare requirements are met and that they are monitored from source to end product. The purchase of RDS-certified products demonstrates the demand for better animal welfare practices in the down and feather supply chain. Sea to Summit is RDS certified.

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