The Imperwass Waterproofing spray for synthetic materials, Suede and brushed Nubuck Leather adds water-repellency and helps maintain breathablility to the leather. Imperwass spray assists in Prolonging the effective lifespan and optimizes the performance of suede and Nubuck leather. To apply, simply wipe off worn boots with a clean towel and spray the Imperwass generously onto the suede and nubuck. Allow to air dry and you&';re done!