Sea To Summit Trek -18C 198 (STS ASL041172-210206)
![]() | Outdated Product By features: trekking; Type: bag-cocoon; Suitable for: universal; Seasonality: winter; spring/autumn; Weight (kg): 2.1; comfort t° (for men) (°C): -11; t° limit (for men): -18; comfort t° (for women) (°C): -11; t° limit (for women): -18; Insulation: fluff; Equipment: zipper at the feet E-Catalog uses affiliate links compensated by our partners. |
Sea To Summit Trek -18C 198 196x79 cm 211x84 cm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Catalog Sea To Summit 2026 - new arrivals, bestsellers, and the most relevant models Sea To Summit.
Compact in the Included Compression Sack
The Winter Sleeping Bag Trek 198 (also known as Long) from the brand Sea To Summit is designed for users up to 2 meters tall. Its length is 211 cm, and its weight is only 2.1 kg. Thanks to a well-thought-out design and an included compression sack, the packed volume of the sleeping bag is reduced to less than 16 liters. This means it easily fits into even a standard city backpack, not to mention larger hiking models.
Warm Thanks to Natural Down
The Sea To Summit Trek -18C 198 model uses RDS-certified duck down, confirming humane treatment of animals during its collection. The high quality and excellent insulation properties of the down ensure a comfortable sleep at temperatures from -11 to -18 °C. An insulated collar and hood protect the head and neck from heat loss, with an additional draft tube along the zipper for isolating cold areas.
Convenient to Use
The width of the mummy-shaped sleeping bag is 84 cm at the shoulders and narrows to 71 cm at the feet, making it slightly roomier than related brand models, such as the Spark -18C 198 (82 and 56 cm respectively). It features the Free-Flow Zip System — a two-way zipper that can be zipped together, partially opened for ventilation, or for freeing the arms. The design is complemented by a reflective pull and a separate closure in the foot area.
Compared to synthetic winter sleeping bags, this model is more expensive, but among down alternatives, the Sea To Summit Trek -18C 198 offers an excellent combination of quality, warmth, and compactness. It's a reliable choice for demanding hikers who value comfort and lightweight gear.



































