UA Low: Classic low-profile baseball cap with structured front panel—maintains contact with head. ArmourVent® Technology delivers ultimate breathability in a light, stretchy, durable & fast-drying fabric. Iso-Chill sweatband helps disperse body heat, making it feel cool to the touch. Adjustable strap closure - Style #: 1383440. 100% Polyester. Imported. UA Classic Fit: pre-curved visor & structured front panels that maintains shape with a low profile fit. This cap is designed to keep you cool when the heat is on, thanks to the advanced ArmourVent Technology, it lets your head breathe, releasing excess heat while blocking out the sun’s rays. The Iso-Chill sweatband works its magic by dispersing body heat, leaving you with a cool, comfortable feel. Grab the Under Armour ArmourVent Adjustable Cap to look cool and stay fresh. One Size. Adjustable strap closure. UA Classic Fit: pre-curved visor. Structured front panels. ArmourVent Technology. Iso-Chill sweatband. 100% polyester. Imported.