Black Boy T-Shirt HeatGear Under Armour. The boys' t-shirt with short sleeves in fitted cut made of original Heatgear material is suitable for all sports activities. The material used wicks away moisture and prevents odours. 4-way stretch technology allows for greater mobility of clothing in any direction. Maximum comfort is ensured by the technologies used, the cut with raglan sleeves provides extreme mobility. Print the Under Armour logo on the chest.Material: 90% polyester, 10% elastan