Sneaker Doctor™ Whitener. When properly applied, Sneaker Doctor® Whitener will clean, polish and preserve all smooth white leather articles. When dry Sneaker Doctor® Whitener is rub-off resistant. SIZE: 90mL COLOUR: White APPLICATION: Sneaker Doctor™ Whitener can be used on all pigmented leather footwear. Remove surface dirt with a damp rag, when dry press and release the applicator to allow product to flow. Apply a thin, even coat over the entire article using a light rotary motion. Allow to dry completely before use. It can be buffed to a gloss finish. For use on smooth leathers only. FEATURES AND BENEFITS: Sneaker Doctor™ Whitener is a one-step whitening polish.