Exclusive Iso-Chill technology makes the Under Armour Iso-Chill Brush Line Short-Sleeve T-Shirt for Men feel cool the instant you put it on, making you feel cooler in every setting. Like an ice pack built right in, its ribbon-shaped nylon fibers disperse heat, while titanium dioxidethe stuff in sunscreenpulls away heat. You feel cooler, so you can play longer. UPF 50+ sun protection shields against harsh rays. A mesh back panel provides extra breathability. UA Scent Control Technology reduces your scent signature in the field. Fast-drying, moisture-wicking power keeps you dry and focused. 4-way-stretch fabrication lets this Under Armour cooling shirt move with you. 100% polyester. Machine wash. Imported.Manufacturer style #: 1351143. 100% polyester Cooling Iso-Chill body fabric UPF 50+ sun protection Mesh back panel for maximum breathability UA Scent Control Technology Moisture-wicking Fast-drying 4-way stretch Helps reduce odors; does not guarantee 100% odor elimination