Lightweight, elastic, durable and quick-drying fabric with ArmourVent perforation for perfect breathability. The material wicks away sweat and dries very quickly. The Iso-Chill wristband and front panel lining help dissipate body heat to maintain a cosy cooling sensation. Adjustable back closure. UA Classic Fit: curved visor and textured front panels maintain a sleek, lower profile. You can find the entire Iso-Chill collection here.