

"What Our Gearhead® Experts Are Saying: ""Warmth-to-weight is stellar. It compresses to a true ‘small’ and still handles frosty starts.""We chase shoulder-season summits with the Spark 15F Down. High-loft fill, efficient baffles, and a streamlined cut deliver serious warmth without taxing pack space. Draft controls fine-tune comfort when temps hover well below freezing—ideal for fast, cold itineraries."
Price: $549.00 from Backcountry
| Merchant | Price | |
|---|---|---|
| $549.00 | Visit Store |
"What Our Gearhead® Experts Are Saying: ""Serious warmth for its weight. The down loft is impressive, and it still compresses into a true ‘small’ in my pack.""We chase shoulder-season summits with the Sea to Summit Spark Pro 15F. High-loft down,...
"What Our Gearhead® Experts Are Saying: ""This is my go-to for late spring through early fall. It’s shockingly small in the pack and still cozy when temps flirt with freezing.""We keep pace with the Sea to Summit Spark 30F. Light, compressible down...
The Sea To Summit Spark 15-Degree Sleeping Bag keeps our pack light and offers plenty of reliable warmth for backpacking trips through the early parts of winter. The lofty 850-fill down has a hydrophobic Ultra Dry Down treatment to maintain warmth in...