A 20-degree (F) quilt is the bread-and-butter workhorse for the 3-season ultralight backpacker. The Hyperlite Mountain Gear 20-Degree Quilt is made with 1.5-inch baffles filled with 1000 fp RDS-Certified Grey Goose Down. Other weight-savings features include a  7 denier micro-ripstop nylon shell. Vertical baffles minimize down migration over the torso and upper legs.