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Trek -1C/30F Down + Sea To Summit

Trek -1C/30F Down

Natural down sleeping bag - Trek -1C/30F Down - Sea to Summit - 2026

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Trek -1C/30F Down
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Description

The Trek -1C/30F Down is a 3-season sleeping bag from the brand Sea to Summit.

With its streamlined sarcophagus shape and high-quality certified duck Responsible Down Standard down with a fill power of 650 CUIN, this model will keep you warm from early spring to late autumn. 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 shape of this sleeping bag is designed to fit your body shape and the zip fastening FreeFlow retains warmth. The hood is ergonomic and adjustable. This model will protect you from the cold down to -1°C. Very compact, it can easily be slipped into your Hiking bag. This sleeping bag is an essential companion for your hikes and Bivouacs from early spring to late autumn!

Trek -1C/30F Down
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Technical details
Comfort temperature
3
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)
1119
Shoulders (cm)
84
Feet (cm)
65
Length (cm)
198
Compressed volume
13
Technical details
Composition
Duvet naturel certifié RDS
Zip side
Droit Gauche
Seasons
2
Combinable
No
Performance
Extreme temperature
-17
Comfort temperature limit
-1
Use type
14605 14613
Filling
Down
Other features

- Optimal heat-to-weight ratio
- Semi-rectangular cut
- Resistant to moisture and condensation
- Zip fastening with zip guard and 2 sliders
- PFC-free product
- RDS-certified down

Composition :
- Filling : Goose down
- Outer material and Lining: Recycled polyester



Size Regular Long
Maximum user height 1.85 m 1.98 metres
Shoulder width 79 cm 84 cm
Hip width 75 cm 80 cm
Foot width 60 cm 65 cm
Compressed volume 13 L 13 L
weight 1119 g 1253 g
Filling weight 380 g 437 g





Responsible Down Standard (RDS) The RDS standard 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.
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.
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