Following the arrival of the original Operational Camouflage Pattern uniform, hot weather OCP uniforms were developed for wear in hot or humid conditions. Constructed from a 57% nylon / 43% cotton blend, the improved hot weather combat uniform (IHWCU) is lighter, softer and more breathable than the original uniform set. Designed to dry quickly and perform better in the heat, the hot weather OCP uniform pants and coat offer top-level comfort in arid environments. Our selection of hot weather OCP uniform wear features a mix of new design elements alongside classic features and is approved for official uniform wear.