Sea to Summit Spark SpIII Regular

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, and that mummy design is then tweaked for each model to best fit the use scenario. The ULTRA-DRY 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.

Weight: 665 g
Fill weight: 430 g
Ultralight 7D and 10D fabrics for minimal weight and packed size
RDS 850+ Loft Premium Goose ULTRA-DRY Down for maximum insulation value
Uses a full box baffle construction to accommodate extra down and reduce cold spots
Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
Vertical baffles on chest optimises positions of down to prevent it moving during use
Full side zip with two sliders provides easy access and extra ventilation options
Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed
Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims