From the manufacturer

Men's UA Blitzing Trucker Hat

Even our hats are built to make you better. Built-in HeatGear sweatbands wick sweat to help keep you cool. Stretchy materials breathe as you work out to keep you comfortable and focused. That's what hats for athletes do.

• One Size Fits Most
• Adjustable snapback closure
• Sweat-wicking, textured knit fabric is super-soft for all day comfort
• Trucker mesh side & back panels deliver added ventilation
• UA Pro Fit: pre-curved visor & structured front that maintains shape with a slightly higher crown