Close contact palm protection Single-layer SpiderGrip leather for palm protection and a stickier, close-contact feel on the bar. Contoured edges for comfort between the fingers Adjustable neoprene padded wrist closure for a custom fit. Can be used with or without chalk The Harbinger Palm Grips provide extra grip assistance and palm and wrist joint support. Featuring the Spider Grip technology, the single layer of specially processed leather produces a tackier hand with close contact feel on the bar. Contoured edges offer comfort between fingers and the neoprene padded adjustable cotton wrist closure provides a customized fit. Can be used with or without chalk for a variety of weightlifting exercises.