Hatch Reactor Hard Knuckle 3/4 Finger Glove, Large, Black Knuckles are covered with .7mm-.8mm aniline goatskin leather to reduce IR signature of the glove Knuckles formed from hard polymer for the protection you really need Additional leather, foam and padding to protect the tops of the knuckles on the fingers Additional PVC non-slip across the meaty portion of the palm and base of the fingers The design tapers up the outside wrist to protect this sensitive area