Set includes 3 items: 1 long sleeved crewneck tee shirt, 1 elastic waistband legging, and 2 pairs of complimentary hand warmers.nRetains body warmth and regulates body temperature.nStretch comfort provides durability and lasting shape.nAnti-odor, anti-static, quick dry, and wicks away moisture.nSizing in Weight (lbs): XS = 32-41, S = 42-59, M = 60-72, L = 73-99, XL = 100-125.nHe will be be warm and dry in this 2 piece base layer set by 32 Degrees Weatherproof. Made to wick away moisture and regulate body temperature. The unique blend of yarns create a luxurious feel and is anti-static and anti-odor. 37% Acrylic, 34% Polyester, 25% Rayon and 4% Spandex. Machine wash cold. Sizing: XS - 4/5; S = 6/7; M = 8/10, L = 12/14. XL = 16/18.