No one likes being outside in cold weather, but here at topbrassmilitary.com, we try to make those days a little more bearable with our selection of polypropylene thermals, poly/cotton thermals and micro-fleece jacket liners. Our polypropylene thermal tops are available in crew neck or zippered and come in your choice of black, foliage or G.I. brown as do our polypropylene bottoms.