The Spark II by Sea To Summit has a streamlined feather-weight design with additional proportional 850+ down fill to take you into cooler summer through fall temps while still compressing to a small size.
This sleeping bag is great for remote workers who like adventure during all seasons because it doesn't add a lot of space to your travel pack while keeping you warm all night long!
- Shell: 10D UL Nylon treated with DWR
- Liner: 15D nylon soft touch, high density weave
- 850+ loft Ultra-Dry Down (90/10 European goose down)850+ loft Ultra-Dry Down (90/10 European goose down)
- 1/3 length #3 YKK zipper
- Sew-through transverse baffle construction
- Compressed Volume 2.9L