thicken Thermal Underwear 1.material,cotton ,polyester , wool, spandex 2.size,S/M/L/XL/XXL/XXXL 3.weight :800g/set thicken Thermal UnderwearWe are specialized in manufacturing seamless and thermal underwear for more than 5 years.We have cooperated with foreign customers coming from:USA,RUSSIA,EUROPE and so on.Our products have features as follows: 1:fashionable design. 2:different size (S/M/L/XL/ ...