Sea to Summit Spark II SP2 2°C Ultra Light Down 2°C Sleeping Bag - Long
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Ultra-dry down protection and warmth in a minimalist package.
The ultralight Sea to Summit Spark II sleeping bag is the warmer bag for minimalist missions in colder conditions. The Spark II has the same streamlined design as the others in the series with additional proportional fill to concentrate warmth where it’s needed most. Using the warmth of 850+ loft 90/10 goose down, the amazing moisture protection of ULTRA-DRY Down™, and a micro-weight 10D Pertex® shell and 15D lining, Sea to Summit have created one of the best warmth for weight minimalist sleeping bags available.
- 10D Pertex ® Quantum shell for minimal weight and bulk
- Sewn through lateral baffles over legs, Box wall baffles over torso
- 55/45 fill ratio
- Differential fill to gradually concentrate warmth over body core
- Contoured hood with drawcord
- Tapered footbox
- 1/3 length YKK 3 side zip
- Includes lightweight 15D Ultra-Sil ® compression bag, mesh storage cell and laundry bag
- ULTRA-DRY Down ™ 850+ Loft 90% Down Cluster Premium European Goose Down
|Down Type||Ultra Dry 850+ Loft 90/10 European Goose Down|
|Fill Weight||Regular: 280g|
|Sleeping Bag Weight||Regular: 464 g|
|Fill Ratio: Top/Bottom||55:45|
|Baffle Design||Sewn through lateral baffles over legs, box wall baffles over torso|
|Shell Design||Contoured mummy, differential cut shell|
|Outer Shell Fabric||15D Nylon, 386T, soft touch, high density down proof weave|
|Length / Zip Options||Regular - left 1/3 length zip|
|Recommended height for user||Regular - up to 183 cm Long: 183 to 195 cm|
|Chest circumference||Regular -146cm Long: 152 cm|
|Regular - 126 cm Long: 132 cm|
|Regular - 88 Long: 94cm|
|Season Rating||Summer / Spring / Autumn|
|EN Temperature Rating||Comfort: 7°C Lower Limit: 2°C Extreme: -13°C|
|Suggested Use||Travel, Adventure Racing, Cycle Touring, Liner Bag, Ultra Lightweight Hiking, Ultra Lightweight Alpine Climbing|
|Compressed Volume||2.9 Litres|
|Compression Bag||2XS - 3.3 to 1.3 Litres|
The secret to the Spark’s warmth to weight are in the premium quality down and high performance microweight shell and liner fabrics, the 1/3 length light-gauge #3 YKK zip and the sewn-through transverse baffle construction.
The Spark compresses so small, Sea to Summit had to re-engineer their compression-sacks to make one that reduced sufficiently. The ULTRA-DRY Down™ protection makes the Spark an impressive hard-alpine or adventure racing sleeping bag, where down has never before been a viable option, and weight is simply not tolerated.
1/3 Zip Mummy Bag
The Spark is cut as a close-fitting mummy bag. The full hood, foot box and short zip maximise fit and warmth while keeping weight and bulk to a minimum.
Outdoor Gear Lab Top Pick
"The Sea to Summit Spark Sp II is a surprisingly warm 1 pound sleeping bag. This minimalist model is a great choice for backpackers and climbers looking to save weight and pack space for specific mountain objectives. We award it out Top Pick award for the specific application of fast and light backpacking."
Outdoor Gear Lab, 2015