Waterproof Your Leather Boots and Prevent Soggy Feet. Dry feet are essential to a great outdoor experience. So, before you head for the lake, the hills or the campsite, treat your leather boots to Gear Aid’s ReviveX® Leather Gel Water Repellent and Conditioner. Specially designed for full-grain leather care, the ReviveX Leather Gel Water Repellent and Conditioner makes it easy to waterproof new boots, as well as restore older boots to like-new condition. The formula soaks into leather, for a deeply penetrating, high-tech solution to rain, puddles and mud. It won’t affect breathability, so it’s great for GORE-TEX® footwear.