The Thermarest Z-Seat is a rugged, ultralight closed-cell foam seat designed for outdoor comfort. Featuring a heat-reflective ThermaCapture coating on one side, it helps keep you warm while you sit. Its accordion-style design and durable foam construction make it the perfect solution for on-the-go comfort, weighing next to nothing. Nearly indestructible, the Z-Seat is ideal for backpacking, ski touring, or relaxing on uneven terrain.