menuMenu
contact
Contact us!Contact
basket
basket
My basketBasket
SUMMER DEALS - Up to 60% off Shop now
Alpine -29C/-20F Down + Sea To Summit

Alpine -29C/-20F Down

Extreme cold sleeping bag - Alpine -29C/-20F Down - Sea to Summit - 2026

711,90 €
-25%
949,90 €
Unavailable
shop
Alpine -29C/-20F Down
711,90 €
-25%
949,90 €
univers marques
Not subject to promotional offers
return 60 days to change your mind
no special offer No subject to promotional offers
Get 14,24 € off your next order.
Description

TheAlpine -29C/-20F Down is a sleeping bag from the brand Sea to Summit that is perfectly suited to extreme conditions.

This model is part of the range Trailblazer, designed to offer lightness, reliability and strength. The minimalism of the products also offers you more freedom and mobility during adventures in extreme conditions. With its streamlined sarcophagus shape, certified Responsible Down Standard high-quality goose down and 850 CUINfill power, it will accompany you on your adventures in the coldest climates for peaceful and comfortable nights. The feather has been treated to make Ultra Dry Down it waterproof, giving it excellent water resistance and humidity resistance. The 10D recycled Nylon design prevents condensation from forming on the outer wall for increased comfort.

The double collar and drawstring tube ensure optimal heat retention and promise optimal comfort even in very cold weather. This sleeping bag has two closing systems, a main full-length one and a secondary 1/3-length one. This model will protect you from the cold down to -29°C. This sleeping bag is an essential companion for your expeditions and Bivouacs in extreme conditions!

Alpine -29C/-20F Down
Discover related categories
Technical details
Comfort temperature
-19
Sleeping bag shape
Mummy
Insulation type
Synthetic
Use - sleeping bag
Mountaineering
Overview
Brand
Sea To SummitSea To Summit-logo
Warranty
2
Year
2026
Season
Spring
Gender
Unisex
Product details
Weight (g)
1459
Shoulders (cm)
80
Feet (cm)
66
Length (cm)
198
Compressed volume
26
Technical details
Composition
Nylon 10D recyclé, Duvet naturel certifié RDS
Zip side
Droit Gauche
Seasons
4
Combinable
No
Performance
Extreme temperature
-54
Comfort temperature limit
-29
Use type
Mountaineering
Filling
Down
Other features

- Footbox zipless and no draughts
- Compatible with a pillow Sea to Summit
- 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 : 850 CUIN goose down
- Outer material and Lining: 10D recycled Nylon
- Hood and feet: 10D Nylon

Sizes:



Size Regular Long
Maximum user height 1.85 m 1.98 metres
Shoulder width 79 cm 84 cm
Hip width 73 cm 78 cm
Foot width 60 cm 65 cm
Total weight 782 g 879 g
Filling weight 300 g 343 g
Compressed volume 8 L 8 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.
With the purchase of this product, we offer youWe offer you
gift
Free
A Snowleader gift to choose from
plus
SUMMER DEALS: Get a £25 gift card with any purchase from the clearance section (gift card will be sent later; see offer terms and conditions)
Free
SUMMER DEALS: Get a £25 gift card with any purchase from the clearance section (gift card will be sent later; see offer terms and conditions)

Our Bloch' letter

Keep up to date with Snowleader's news and promotions

Subscribe