The Sea to Summit Spark Series bags is what you reach for when you need a high performance sleeping bag but don’t want to be weighed down by one.
Ultra-light and technical, the Sea to Summit Spark SPII - Long down sleeping bag (for people with height up to 198 cm) is designed to keep you as warm as possible while minimizing packed weight and size.
The secret to the impressive performance is a combination of premium materials and careful design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK 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. The sizing provides extra room for sholders and hips without compromising thermal efficiency and a 1/2 zip aids access and ventilation. The down used in the Spark range is ULTRA-DRY Down - water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down. The Spark SpII model also features a zipper draft tube and draft hood collar to prevent heat loss.
The Spark SpII mummy sleeping bag from Sea to Summit is an excellent choice for active hikers that go out from spring till autumn, who want to have extra insulation for colder nights and for whom weight is the main focus.