BUnder Armour Men's UA HeatGear� Armour Printed Sleeveless Compression Shirt ReviewbP PP Under Armour Men's UA HeatGear� Armour Printed Sleeveless Compression Shirt PHeatGear® fabric, with all the benefits of UA Compression, comfortable enough to be worn all dayPStretch-mesh underarm panels deliver strategic ventilationPUPF 30+ protects your skin from the sun's harmful raysP4-way stretch fabrication allows greater mobility in any directionPMoisture Transport System wicks sweat & dries fastP