UA Raid Short Sleeve T-Shirt A Comfortable Tee Bursting With Tech This simplistic Under Armour Raid Training T-Shirt is embedded with a technical HeatGear® fabric. An ultra-soft and smooth material for extreme comfort with very little weight. At the sides a Stretch-mesh underarm and back panels deliver strategic ventilation, allowing fresh air to permeate the interior to keep the surroundings cool and comfortable. This coincides with the 4-way stretch fabrication that allows greater multi-directional movements without restrictions in any direction. As you perform perspiration becomes a problem, not with this garment as it comes layered with a Moisture Transport System that actively wicks sweat away from the body while an Anti-odour technology prevents the growth of odour-causing microbes.