Louis Vuitton designs and sells high-end leather accessories, including handbags. Louis Vuitton products are noted for their supple, luxurious texture and craftsmanship. Watermarks on this leather can be alarming, especially considering the price of a Louis Vuitton bag, but water stains usually come off quickly and with minimal effort. Treating the leather afterward with mink oil or leather conditioner restores the bag's suppleness and luster.
Dampen a new sponge in clean, room-temperature water. Squeeze to remove as much excess water as possible. The sponge should be barely damp.
Blot any watermarks with the sponge, working your way outward toward the edges of the leather. Reduce the amount of dampness as you move toward the edge. Do not rub; just dab. Leave the leather to dry uniformly across the surface. This will usually cause the watermarks to disappear.
Treat the leather with mink oil or leather conditioner, working it into the surface of the Louis Vuitton leather with a buffing cloth.