Assuming your old gloves don't yet reek of palm-sweat and aren't disintegrating at the seams, renew their life with Nikwax Glove Proof. This magical substance restores or even creates waterproofing for your beat-down leather or fabric gloves. Safe for Gore-Tex, eVENT, and Sympatex, Glove Proof will keep your mitts warm and dry far longer when applied to a new pair of gloves to boot. 4. 2 fl. oz. (125 ml)