Our custom fit thermal with retro ribbed neckband and leg opening is made with a soft cotton/poly mini waffle thermal that has a delicate appearance. Great when layered with short sleeve styles for extra warmth. 60% cotton 40% polyester 40 single combed ring-spun 4.5 oz., 150 gm/m2 mini thermal knit. Garment washed for superior softness and minimal shrinkage.