

"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 and efficient baffles deliver just-right warmth for alpine meadows, desert rims, and shoulder-season ridgelines. It packs smaller than a water bottle and is easy to live with from trailhead to summit."
Price: $449.00 from Backcountry
| Merchant | Price | |
|---|---|---|
| $449.00 | Visit Store |
What Our Gearhead® Experts Are Saying: “I recommend this to ultralight backpackers who still want real comfort. It’s warm for the weight, the liner feels great, and the zipper vents let you tune temperature instead of sweating through the night.”Cold...
What Our Gearhead® Experts Are Saying: “This is the bag I point to for fast-and-light trips where nights stay mild but variable. It packs incredibly small, vents well, and still feels like a true sleeping bag—not a fragile summer quilt.”When miles...
"What Our Gearhead® Experts Are Saying: ""The Spark 45F is my go-to when I want to keep my pack as light as possible without sacrificing real sleep. The down lofts quickly, the hood seals warmth better than most ultralight bags, and the 10D shell breathes...