Nemo Astro&trade; Insulated & Pillowtop&trade; Sleeping Pad 75D polyester fabric laminated with polyester film keeps fabric airtight and promotes high weld strength Lateral baffles prevent the sides of the sleeping pad from curving around your body Engineered I-beam baffles create a flat sleeping surface A small packed size allows you to take a smaller pack or carry more luxuries Weight 1 lb, 8 oz, Width 20 in, Length 72 in, Thickness 2.5 in, Pack size 8 x 4.5 in dia, Fabric 75D Polyester