Not sure if this is the right category.

You can buy leather restoration kits at Wilson's and most high quality shoe stores . Check Amazon.com as well .

I live close to Louisville KY. you may consider contact the curator of the Ali Center. They may have a suggestion.

Obenaufs seems to be the definitive producer of leather preservatives. Without seeing the glove, I would be inclined to treat both gloves, even if the one is disinigrating. If anything, it will show that they're old. Then you can put them in a shadow box lined with maybe black velvet. Make sure the box has a glass lid. You can then hang the display on your wall as a precious memory.

I agree with Liz.. They will be a beautiful memento when highlighted in a shadowbox.. Do you have a photo of your grandfather with the gloves? that could be included in the shadowbox.

Thank you all so much! I will try all suggestions. I really do want to save these gloves. I do not have a photo of my grandfather with or without these gloves, but was able to find his fight history on the net and will print that up to put in the shadow box. I am thinking I will have the glass on the front etched with 'Kid Dixie' his fighting name, as well. I think my son will appreciate having these when I'm gone.

Apply a high-quality leather conditioner such as Preservation Solutions Leather Saver with a soft white cloth, and you're done. Be careful: never use furniture polish, car care products, or any oil, wax, or silicone-based leather conditioners not formulated specifically for antique leather.

Made of leather? Try local taxidermist. Also, NikWax makes some interesting stuff to preserve and clean materials.