The Thermarest Z-Lite is Thermarest's lightest & most compact closed-cell pad. It has been made using softer foam on top for comfort & denser foam underneath for durability. Its accordian style design lies flat & packs small, while the egg-carton pattern enhances warmth & softness. Dimensions: 51x 183cm. Packed: 51x 13x 14cm. Weight: 390g