Details Therm-a-rest Prolite Apex Sleeping Mat A lightweight and stable sleeping mat, the Prolite Apex offers year round warmth and comfort thanks to its unique StrataCore™ construction. One continuous layer of thermal foam nestles between alternating ridges of air and self-inflating foam. Just top off with a breath or two for personalised firmness. Perfect for everything from winter adventures to summer backpacking. Weight: 790g Dimensions: 63 x 183 x 5cm Packed size: 33 x 13 cm Materials: Top: 50D polyester Bottom: 50D polyester Foam: Urethane foam Specifications Prolite Apex Sleeping Mat