Sea to Summit Trek -1C Down Sleeping Bag
Discount starts: 28.09.2026
Sea to Summit Trek Down sleeping bag is an ideal choice for those who want a less restrictive fit and a high degree of flexibility in a variety of temperature conditions. With its rectangular shape that tapers slightly at the legs, it offers more space for those who sleep on their sides or want greater freedom of movement.
Main features and advantages:
- Free-Flow Zip System: An innovative three-zip system allows for gradual ventilation or allows the bag to be completely opened to be used as a blanket.
- Premium insulation: Filled with RDS-certified duck down ( 650+ fill power ) and treated with PFAS-free Ultra-Dry Down technology, providing better moisture resistance.
- Camping flexibility: The special design allows you to "put on" the bag - unzip at the legs and arms and move freely.
- Durable materials: The outer layer of 20D recycled polyester with a PFAS-free DWR coating protects against wind and moisture, while the inner lining provides softness and comfort.
- Compatibility: Possibility of combining two sleepers.
Materials and technical details:
- Insulation: RDS certified, 650+ Ultra-Dry Down duck down
- Weight: 1119g
- Temperature rating (ISO Lower Limit): -1 °C
- Temperature rating for women (ISO Comfort): 3 °C
- Folded volume: 8.2 L (compressed)
- Suitable for heights up to: 185 cm
- Filling weight: 380 g
Ideal for:
Camping, traveling, vehicle camping. Sea to Summit Trek is the perfect companion for anyone looking for the comfort of a home bed in the middle of nature.
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Weight (g): 1,119
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Sleeping bag type: Down
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men
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women
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Sleeping bag shape: Rectangular shape
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Comfort (°C): 3The lower limit of temperature at which the average user, in a relaxed position (e.g. lying on their back), sleeps comfortably all night without feeling cold.
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Limit (°C): -1The temperature at which a standard male user in a hunched body position does not fight the cold and maintains a stable body temperature.
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Extreme (°C): -17The lowest temperature at which a sleeping bag still protects against hypothermia, but there is a serious risk of frostbite and health problems. At this temperature, sleeping is no longer possible, the bag only offers survival protection (up to 6 hours).
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DWR treatmentDWR repels water and dirt from the surface.
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PFC freeHigh-performance materials with a PFC-free coating to resist water and dirt
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Weight 180 cm (g): 1,119
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Dimensions: Volume of comressed sleeping bag (l): : 8.2
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Filling weight 180 cm (g): 380
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Duck down 90/10 650 cuin
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Hidden pocket for essential small articles
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Possible to join 2 sleeping bags together
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Two way zipper
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Zipper also opens on the bottom
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Free-Flow Triple ZipStrategically placed zips offer ventilation options and freedom of movement.
The Free-Flow triple-zip design ensures your sleeping bag retains maximum warmth and efficiency when needed and multiple ventilation options when it's not. The half zip on the left side of the bag provides freedom of movement for both arms, additional ventilation and also means the top third of the bag can be folded down as a mini quilt. The full length, two-way right side zip and separate foot zip transforms the bag into a full quilt for when the mercury climbs higher than expected.
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