CLIMATESMART Men's X Fleece Heavyweight Baselayer Long Pant 95% Polyester, 5% Spandex Imported Machine Wash Highly breathable heavyweight performance base layer Sculpted stretch fleece provides superior warmth and exceptional comfort Body conscious performance fit, ergonomic flat seams for comfort Moisture wicking helps keep you dry, antibacterial fabric helps reduce odor Contour pouch with non-functional fly, medium-rise, tag free