The Skullerz 8946 Standard Baseball Cap is designed to integrate with the best-selling Skullerz 8945 Universal Bump Cap Insert (not included) for use on worksites where hard hats aren't required, but added head impact protection is still needed to shield against bumps, scrapes, bruises and other minor head injuries. This baseball cap provides a never-before-seen combination of form and function. In addition to the bump cap-compatibility, the hat features reflective brim piping for added visibility, a one-size-fits-most adjustable hook and loop closure and a mesh back half for breathability. Worn alone, baseball hat is a stylish option for everyday wear.