Sea to Summit Spark SP 0 Long Sleeping Bag

If you are looking for the lightest bag possible, the products in the Spark range are made for you. The coolest model in this family, the SEA TO SUMMIT Spark SP0 sleeping bag is designed to keep you warm in mild temperatures between 10° and 15°C while optimizing its weight and size once packed. It can also be used as a liner to complement your 2-season sleeping bag to provide extra warmth in the event of extreme cold. It is offered here in a Long version suitable for people measuring up to 1m98 and/or of heavy build.

To achieve this result, this bag combines Loft RDS 850+ goose down, a small YKKK #3 zipper, high-performance 10D nylon fabrics for the exterior and 7D for the linings. These materials are combined with a sarcophagus-shaped design for effective insulation. In addition, the padding has been placed vertically to prevent it from moving and creating cold zones.

The Spark SPI also benefits from a water-repellent treatment protecting the down from external moisture and condensation inside the sleeping bag, virtually eliminating the negative effects of humidity on the down. This protection also makes it possible to use this model in adventure raids or in difficult alpine conditions, where every gram is counted and where until now natural down was not a viable option.