ETHO Girls Thermal Underwear Sets Long Sleeve Vest & Long Pants 80% Polyester, 20% Viscose Pull On closure Girls Set Of Thermal Underwear (Thermal Vest & Long Pants) This Set Of Thermal Underwear Is Made From A Winter Warm Material - Which Will Provide You With Ultimate Comfort Perfect For Using As A Baselayer During Cold Weather Conditions Fully Brushed For Extra Warmth Machine Washable