Specifications from Richardson website:
Made of our most lightweight performance fabric with R-ACTIVE tech, this relaxed fit cap has UPF 35, and is built to wick sweat away. One size fits most with the adjustable hook-and-loop backstrap.
6 Panel
Relaxed
Precurved
Stay-Dri Performance
Lightweight Performance Polyester
100% Polyester
WICKING, UPF/SUN PROTECTION
Hook-and-Loop Backstrap with D-Ring
Adjustable
Adjustable Hook-and-Loop BackstrapAdjustable
OSFM