Omni-FREEZE ZERO is sweat-activated cooling. The blue rings on the interior act as a cooling agent. As you perspire, they kick in to not only cool you off but also accelerate the wicking process. On top of that, you also get UPF 50 protection for your skin from harmful sun rays so you can keep your cool, and keep casting away.
Chill out, this Shirt cools you off…order today!