Sea to Summit Spark SpII Ultralight Backpacking Sleeping Bag
Light in weight but heavy in features, the Spark™ Series of down sleeping bags are for the ultralight, gram counting adventurer. The SpII will take you through cool summer to fall adventures. Filled with 850+ loft RDS certified ULTRADRY Down™ and employing an ultra-light 10D Nylon Shell, 1/2 #3 YKK® side zipper and narrow cut, the Spark bags are highly compressible and incredibly light. The Spark SpI packs to the size of a grapefruit making these the perfect option for any ultra-light or minimalist adventures.
Packed Size Comparison - 35°F: 2.9L ≈ Two grapefruits
Weight - 35°F: 16.4 oz ≈ Pint of ice cream
Performance - 35°F: 2.5 Season - take this sleeping bag out late spring into early fall, no matter where you are.
Fit - Slim, there's not a lot of extra room for wiggling.
RDS ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down
Shell: 10D UL Nylon
Liner: 15D Nylon soft touch, high-density weave
1/2 length YKK® #3 zipper (Sp II and Sp III have a draft tube)
Sp I: Sewn-through construction. Sp II: Box-wall baffle construction in the torso, sewn through in the leg area. Sp III: Box-wall baffle construction throughout
Anatomically tapered foot box
Includes lightweight Ultra-Sil Nano™ compression bag and a combined storage cell/laundry bag
BEST USE - Ultralight Backpacking, Bike Touring, Liner Bag
COMES WITH - Ultra-Sil Nano™ Compression Sack & combined Storage Cube Laundry Sack