The Therm-a-rest Z Lite SOL is a lightweight, compact closed-cell camping mat, perfect for 2-season camping. A favorite among ultralight enthusiasts, it's one of the lightest and most compact options available. Its accordion-style shape with heat-trapping dimples and proprietary foams, softer on top for comfort and denser on the bottom for durability, make it ideal for ultralight warmth, durability, and comfort. The Z Lite SOL features Therm-a-rest's reflective ThermaCapture coating, increasing warmth by nearly 15%. Use it alone or as a protective layer for your inflatable mat.