What are you grabbing underwater that you require Kevlar gloves for? Lobster hunting is one thing, but for general, zero-impact (and that means keeping your lunchhooks totally off stuff down there), green or purple nitrile exam gloves protect your hands from any errant stuff in the water. Plus the color helps you keep the pulled-off gloves from sliding out the scuppers of your boat and into a turtle's stomach.
Penetrations on torpedoed and old wrecks off NC coast pretty much mandate protective gloves or you'll come back up with chewed up hands.