Sea To Summit's new ultralight Spark™ Series of sleeping bags are designed to keep you as warm as possible while minimising packed weight and size. The expedition-sized Spark SPIV is the warmest in the series with temperature rating of -8°C comfort and -15°C Lower comfort.
Constructed using ULTRA-DRY Down™ 850+ loft premium goose down, light-gauge #3 YKK® zip, high-performance 10D nylon shell and 7D lining fabrics, with a contoured mummy shape for efficient insulation and superior performance.
Other features include a full box baffle construction to allow for extra down and reduce cold spots, a full-length zip and a draft tube, full hood and neck collar to keep heat in. An expedition weight mid-winter bag.
Available in regular 880g and long 985g sizes.
Size: Regular or Long
Weight: Regular 880g, Long 985g
Packed: approx 40 x85cm
Compression: Regular 6.6L, Long 7.7L, 10 to 3.3L sack volume