The Spark -18C Down Sleeping Bag by Sea to Summit is designed for the swashbucklers of the cold-weather camping world.
A 10D Nylon construction in the shell, lining, hood, and footbox offer lightweight breathability and water resistance on every outdoor retreat, while its RDS certified 850+ FILL Power goose down provides both comfort when unpacked and a compact pack down – treated with ULTRA-DRY down water-repellent to protect from moisture on the damper days off the grid. To minimise cold spots too, vertical and horizontal chest baffles are present in both the lower-half and base, while a box wall baffle construction exists throughout the entirety of the bag.
Sporting a Mummy Fit for thermal efficiency and minimal weight too, the technical hood also offers a soft-touch adjustment, sitting deep for a warmer winter-camping experience. A -10°C comfort rating and -18°C lower limit also has it suitable for extreme temperature drops in sub-zero conditions on those cold-weather camping trips, embellished with a durable 3/4-length #5 primary zipper, zip plow, two sliders, and a down-filled draft tube that follows it along the top. Plus, the double draft collars traps heat effectively for a toasty night’s sleep amid frosty climates.
Experience the beauty of winter camping with the benefits of warmer sleep, thanks to the Sea to Summit Spark -18C Down Sleeping Bag.
-10°C Comfort rating, -18°C Lower Limit rating
10D Nylon shell and lining
10D Nylon waterproof, breathable hood and footbox
Double draft collars for trapping heat
Single, down-filled draft tube runs along top of all zippers
Vertical chest and horizontal chest baffles in lower half and base
Box wall baffles construction throughout
Mummy Fit for maximum thermal efficiency and minimal bulk/weight
3/4-length #5 zipper with zip plow and 2 x sliders
RDS certified 850+ FILL Power goose down for comfort and compact packing
ULTRA-DRY down water-repellent treatment for water resistance
Compatible with separately available Sea to Summit quilts
Compatible with separately available Sea to Summit Women’s bags
20L compression bag included
Season:
Cold Climate
Comfort Rating:
−10 °C
Snowys Comfort Rating:
−10 °C
Lower Limit:
−18 °C
Shape:
Mummy
Max. User Height:
185 cm
Internal Girth:
155 cm Chest | 135 cm Hip | 102 cm Foot
External Dimensions:
196L x 77.5W cm
Packed Dimensions:
46L x 18W x 27.5H cm
Weight:
In−Use − 1.113 Kg | Packed − 1.208 Kg
Compressed Volume:
9.9L | Compression Sack Size − 20L | Storage − L
Material:
10D Nylon | Non−PFC DWR
Fill Material:
RDS−Certified 850+ Fillpower Goose Down | Non−PFC Ultra−Dry Down Treatment
Fill Weight:
840 g
Lining:
10D Nylon
Zip Draft Tube:
Yes
Neck Draft Tube:
Yes
Zipper:
Free Flow Zip System | Primary − 3/4 Length #5 with Zip−Plow & 2 Sliders