Thermarest Z-Rest 3/4:
This 3/4-length Therm-a-Rest® Z-Rest™ pad is one of the lightest essentials you can attach to your pack. The hinged, accordion-style construction also makes it convenient for packing. Therm-a-Rest® recently improved the design with a dual-density closed-cell foam construction, keeping a softer layer next to your skin and a tougher, more abrasion-resistant side facing the ground or floor.
