Therm-a-Rest Z Lite SOL Regular Camping Mat - Silver/LimonTherm a Rest designed the Z Lite SOL Regular camping mat to deliver reliable performance wherever you are sleeping. The closed cell foam has a reflective ThermaCapture coating to capture radiant heat and increase overall warmth by nearly 15%. The dimpled design traps extra heat and provides a comfortable sleeping surface. You can use the mat alone or layered under another pad in cold conditions.