The Valor Tank Top is the first layer you put on and the last you take off. All Tommie Copper’s Innerwear features Cool Copper™ technology that wicks away moisture, drying 5 x faster than cotton. Polished hand and flat lock seaming ensure the shirt glides across the skin. All Innerwear features Copper Znergy™ copper and zinc-infused fabric, which eliminates odors in the shirt. Perfect for wearing as an undershirt or as a rejuvenating sleep layer.