Description
Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimizing?on pack weight and size.
The Sea to Summit Spark range includes everything from an ultralight liner to an expedition weight mid-winter bag. They are the pros at?matching weather conditions to the lightest bag possible. The secret to this impressive performance is a combination of?careful design and use of premium materials.
Constructed from RDS 850+ Loft premium goose down, high performance 10D Nylon shell and 7D lining fabrics, secured by light-gauge #3 YKK zip. Making use of the contoured mummy design for efficient insulation, and that design is then tweaked for each model to best fit the use scenario.
Each bag is treated with ULTRA-DRY Down™ water-repellent treatment, protecting the down from external moisture or condensation from the inside of the bag.
The ULTRADRY Down™ protection also makes the Spark™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option. All Sea to Summit Down Sleeping Bags use Responsible Down Standard (RDS) certified down.
Features:
- Ultralight 7D fabrics for minimal weight and packed size
- RDS 850+ Loft Premium Goose ULTRA-DRY Down™ for maximum insulation value
- Contoured mummy shape for comfort and efficient insulation
- Ideal for mid-summer fast hikes or adventure racing
- Sewn through quilted construction to minimise weight and keep down in position
- Doubles as a liner to significantly boost the warmth of a second bag
- Includes removable stuff sack attached to foot box for compact storage
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