When you're moving swiftly through the mountains, you can't have some heavy old sleeping pad weighing you down. But with the Alps Mountaineering Swift Insulated Sleeping Pad, you've got nothing to worry about. With a respectable 2.0 R-value and a weight of less than a pound and a half, it's situated at a nice middle ground of cold weather performance and low bulk, giving you more comfort on the trail and at camp.