Overview Reviews Product Description BLACK EXTREME COLD WEATHER POLYPROPYLENE UNDERWEAR BOTTOM: 100% POLYPROPYLENE SOFT FLEECED LINING MEETS US MILITARY SPECS. 10 oz. Heavy Expedition Weight Material NEW BOTTOM BLACK Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Rothco Black ECWS Polypropylene Bottom Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments