That would be the weight for a three-season (spring, summer and autumn) kit. It would include a sleeping bag that is warm to around 20 degrees F. I use a Marmot Helium sleeping bag, 20 degrees and 28 ounces (28.35 gm/oz) except during summer. Then I carry a Western Mountaineering Summerlite bag at 32 degrees and 21 oz (the bag has an extra 2 oz of down added).

My pack, used in the mountains of the western US for three seasons will usualy weigh between 9 and 14 pounds depending on how much water I need to carry and whether I need a bear canister for my food. I plan on walking the 215 mile John Muir Trail this coming summer and anticipate nighttime temperatures as low as 28 degrees F. My pack, with the bear canister will likely weigh about 14 pounds.