Trial Run

I did a hilly one hour run with a super light overnight pack as a test drive. Food, water, fleece, hat, gloves, rain gear, headlamp, life straw, sleeping bag, and my tiny air mattress ... about 13 pounds.

After shivering on many trips with a half bag - most recently on the Tahoe Rim Trail with El Presidente - I recently sprang for a super light sleeping bag. The Sea to Summit Spark II sleeping bag has a total weight of one pound, and as you can see is not much bigger than a water bottle. Good for nights that get down to 35 degrees, it should certainly be excellent in the Sierras, Rockies, or Alps during June-July-August, and maybe a few weeks in either side.