The Crab Ball Cap White Maryland Crab Embroidered Baseball Cap (Plum) Maryland Gifts Wimbledon Twill Ball Cap Blue Crab Hat Crab Cap With Flat Brim, Mesh and Adjustable Snapback Maryland Blue Crab baseball cap hat Walmart.com. Add a splash of seaside charm to your wardrobe with the Crab Ball Cap. Featuring a bold red crab embroidered on a crisp white front panel and finished with a sky blue brim, this hat channels laid back coastal vibes. The lightweight cotton design and adjustable strap in the back make it a comfy, easy fit for sunny day adventures. Whether you're lounging on the dock or heading to brunch, this cap is your new go to catch.