Use a soft brush to gently remove any surface dust or debris on the outside of the football. Be careful not to squeeze the football, as this can damage the leather further.
Apply a thin layer of oil to the surface of the football. Olive oil or neatsfoot oil will work, but these oils can darken the color of the leather. If you want to preserve the current shade of the leather, avoid natural oils. Make sure to wipe away the excess oil with a clean dry cloth, because leftover oil could go rancid over time.
Select a leather recoloring balm that matches the color of the football. This will not repair the cracks, but will effectively mask the exposed fabric that the cracks have revealed. Leather recoloring balms or recoloring kits can be purchased at hobby shops, farm supply stores, or furniture showrooms.
Treat the football with leather conditioner every year to maintain its sheen and keep the leather supple. This can help to prevent further cracks or deterioration.