Don't let soaring temperatures deter you from your training. The Under Armour Men's Loosegear Sleeveless T-Shirt keeps you cool throughout your workout. The double knit pique construction includes strategically placed HeatGear ventilation panels that transport moisture and that stretch. Under Armour made the Loosegear Sleeveless T-Shirt as a multi-purpose training shirtso use it on the track, the field, or the court.