Under Armour HeatGear short sleeved compression shirt NWT Navy blue & gray Style # 1228747 Size XL see size chart;pictured HeatGear® fabric, with all the benefits of UA Compression, comfortable enough to be worn all day Stretch-mesh underarm panels deliver strategic ventilation UPF 30 protects your skin from the sun's harmful rays 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Mesh panel on back neck with ARMOUR wordmark