ColdGear Under Armour Grey Boy T-Shirt. Long-sleeved boys' t-shirt in fitted cut made of original Coldgear material, which is suitable for all sports activities. Two-layer material - the inner ground surface warms you up, the outer layer wicks away moisture and quickly drys out. The material used prevents the appearance of odor. 4-way stretch technology allows for greater mobility of clothing in any direction.Material: 88% polyester, 12% elastan