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The Sea to Summit Spark 18 Sleeping Bag is built to keep you warm without weighing you down. This 2.5 season sleeper takes up a tiny fraction of pack space, yet it gives you plenty of room to toss and turn when you're inside. It also features water repellent Ultra-Dry Down 850+ insulation designed to dramatically improve performance when wet, allowing you confidently get after it in any weather.
Ultralight 10D Nylon Shell
Ultra-Dry Down 850+ Loft – 90% Down Cluster Premium Goose Down
Compressed Volume, Regular – 4.6 L
Compressed Volume, Long – 5.4 L
2.5 Season Rating – 25°F (comfort range 25°F to 65°F)
Includes Lightweight Ultra-Sil Compression Bag and Storage Cell
Size | Long | Regular |
---|---|---|
Length | Long | Regular |
Zipper Location | Left Side | Left Side |
Max User Height | 6' 4" | 6' |
Weight (g) | 485 | 430 |