Weighted-knuckle gloves, also called sap gloves, are a type of weapon used in hand to hand combat. They consist of a pair of ordinary looking gloves usually made of leather or a synthetic material, with powdered lead or steelsewn into a special pouch covering the knuckles, and often the backs of the fingers and the back of the hand. In some designs, this distinctive feature is obvious, while in others it is almost completely indistinguishable from an ordinary glove, allowing the gloves to be worn in plain sight without suspicion.

They are primarily used by security guards and by bouncers and other security professionals where physical combat is expected.