Fixing the interior of leather shoes is essential for maintaining the comfort and luster of your footwear. Damaged interior lining is prone to bunching up, which can make foot travel uncomfortable. Worn-down shoes can also scratch the skin or cause abrasions on the feet. Leather repair is straightforward and should be undertaken as soon as damage is evident to avoid ruining the shoe.

Take the shoe off and let it air dry for 24 hours before attempting repairs. A wet interior caused by moisture from the foot can interfere with the repair. Move to step two if the interior of your shoe is suede. Skip to step three if your shoe interior is made of finished or unfinished leather--other than suede.

Remove dirt and grime from a suede shoe's interior with a crepe brush, which is made with soft bristles to penetrate the suede without leaving a scratch. Crepe brushes are available at shoe and leather stores.

Apply leather moisturizing lotion to a leather shoe with a clean, damp cloth. Follow the lotion instructions for amounts. Rub the lotion into the leather surface with medium pressure. Cover the entire leather interior with lotion to prevent additional cracking or chipping of the leather.

Fix any loose leather flaps. Open and squeeze a layer of stichless leather adhesive to the underside of the flap. Stichless adhesive is specifically designed to bond with a strong and flexible hold. Press the loose flap back into place. Wipe away residual adhesive with a clean cloth. Press and hold with firm pressure for 60 seconds. Allow eight hours for the glue to fully dry. Purchase stichless leather adhesive at your local home or leather supply store.

Lather the interior of the leather shoe with mink oil. Follow the instructions on the mink oil label for amounts. Dampen a dry cloth with the oil. Rub the cloth in circles with medium pressure. Treat the interior and exterior of the leather shoe with mink oil for waterproofing. Mink oil contains beeswax, which bonds minuscule cracks that can result in water leakage. It can be bought at a shoe or leather store.