ETHO Set Of 2 Boys Thermal Underwear Long Sleeve Vest & Long Pants 50% Polyester & 50% Viscose Elastic closure Boys Quality Set Of Thermal Underwear (White & Charcoal) - Vest & Long Pants These Thermals Are Fully Brushed For Extra Warmth They Are Made From A Winter Warm Material - Which Will Provide You With Ultimate Comfort This Set Of Thermal Underwear Is Ideal For Using As A Baselayer Underneath Clothing During Cold Weather Conditions/Sport Activies Machine Washable