Granger G-Max Footwear Waterproofer Perform effectively at 30c Granger's proofers can resist 10+ detergent washes, this highlights the durability of the finish Our technologies provide superb stain resistance with no loss of breathable performance Granger's fluorocarbon treatments provide the most water repellent, durable finish to the consumer's apparel and footwear Maximum Waterproofing, maximum breathability, restores repellency