This foam pad is a genuine U.S. army surplus G.I. issued sleeping mat. Designed for use in unforgiving environments, it insulates from the cold ground, prevents moisture absorption, and smooths out minor surface irregularities for a more comfortable night's sleep. Constructed from 3/8-inch closed-cell, cross-linked polyurethane foam. With integrated tie straps, it rolls up tightly for easy transport. Measures 24 in x 72 in unrolled.