Under ArmourUnder Armour Boys' Ua Heatgear Armour Up Sleeveless Fitted Shirt

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HeatGear fabric is ultra-soft & smooth for extreme comfort with very little weightStretch-mesh back & arm panels deliver strategic ventilation4-way stretch fabrication allows greater mobility in any directionMoisture Transport System wicks sweat & dries fastAnti-odor technology prevents the growth of odor causing microbesMesh panel on back neck with ARMOUR wordmarkBody: 4.7 oz. Polyester/ElastaneMesh: 3.5 oz. Polyester/ElastaneImported