Sea to Summit Spark Series - Lightweight Down Sleeping Bag
Ultra-light and technical sleeping bags that keep you warm, without weighing you down.
Sea to Summit's Spark Series spans everything from an ultralight liner to an expedition weight mid-winter bag.
Sea to Summit has now created a women's specific version of the Spark Series. You can learn all about the new Flame Series (Women's specific bag) here.
The impressive performance is the result of a combination of premium materials and careful design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK right-hand zip and high performance 10D Nylon shell and 7D lining fabrics, set the stage for superior performance. These materials are combined with a contoured mummy design for efficient insulation, and that mummy design is then tweaked for each model to best fit the use scenario.