Memorial Day Murph workout in burpee style velcro hat. The Unisex 6-panel Twill Cap is one of our most popular options—it’s perfect for the great outdoors, sporting events, and everyday use. This solid design is 100% cotton twill and will become your go-to hat for years to come. Buckram lining not only makes for easy embroidery but also ensures a classic shape that lasts.