Some lanolin hand lotion and a little water to thin it and help it work into the gloves. Think Burt Reynolds in the movie 'Star' ..... with the boots.

Just not so much lotion!!!!

The lotion keeps em soft, as sometimes water working without an oil will leave gloves or boots crusty and stiff as a roofer's back. They soften up real well this way, and stretch nicely. Take the good insoles out of boots before doing this, and don't plan on hiking downhill until you clean them out a bit!!! (Slide right out of them, ya might!!)