Russell Big Mens L2 Active BaseLayer Thermal Pant:95% Polyester / 5% Spandex4-way stretch mobility & flexibilityDri-Power 360 moisture wicking technologyFlatlock SeamElastic, jacquard waistbandTag-free label for comfortMatching thermal shirts availableAvailable in Extended SizesMachine WashableMake it a set with our matching thermal top, CLICK HERE Available in 2-Pack Bundle, CLICK HERE