Weighted SAP Cap Baseball Style Hat The Sap Cap is your standard type baseball cap, but with the added ability to be used like a blackjack or sap. Just use the bill as the handle and then use the cap as an impact weapon. This covert self defense cap has a bag filled with steel bird shot sewed into the back of the hat,converting a regular baseball hat into a self defense weapon. Color: black or pink. One size fits most.