Danner Boot Waterproofing Spray Treatment is ideal for Nubuck/suede/rough-out leathers that are especially susceptible to water damage. Danner Boot Waterproofing Spray Treatment is breathable, meaning it blocks water from the outside while letting moisture escape from the inside of your boots. Danner Boot Waterproofing Spray Treatment is easy to apply, provides long-lasting resistance to water and snow and makes boots easier to clean. Prevents excess water from creating water spots between the leather and membrane and helps eliminate the constant soaking and drying of leather that may ruin the snug fit of your boots. 4-oz. spray. USA made.