Winter OR Round-Up: Sea to Summit Spark Sleeping Bag

www.seatosummit.com
Weighing in at a whispery 12.3 ounces, the new Spark is a 850-fill waterproof down sleeping bag that’s primed to become a minimalist’s favorite outdoor resting place.  The bag is rated to 46 degrees and packs down to the size of a softball. It’ll be out this August in both regular and long lengths. The 10D Pertex Quantum shell is treated with DWR water repellency, with a soft-touch nylon interior. Through-hikers, adventure races, and dedicated minimalists will love the bag’s awesome weight-to-warmth ratio.