35% cotton, 65% Polyester. Button closure. COMFY & COZY: Keep warm with a thermal underwear set designed with impressive comfort in mind. No dealing with thermals that itch, scratch and cause you to break into an uncomfortable sweat. STAY WARM IN STYLE: A lovely 3-button Henley thermal top combines with beautifully-fitting jogger pants all designed in eye-catching buffalo plaid to create womens thermal underwear that oozes effortless style. The waffle knit thermal bottoms have 2 mock buttons for a pretty touch and the buffalo check thermal set is available in multiple colorway options to match your taste. GREAT FOR LAYERING: This ladies thermal underwear has a snug fit, making it great for layering on cold days or for use as fitted pajamas. MADE TO LAST: The thermal wear for women blends the comfort of cotton with the durability of polyester to create a garment that will sail you through numerous chilly moments. The thermal ladies underwear washes well in the machine without shrinking or running color.