Whether you decide to wear your uggs inside or outside, this Repellent will protect your boots from cooking oil, dirt or water. Just spray your boots, allow 10 min to dry and wear them away! UGG™ Water & Oil Repellent spray is specifically formulated to protect all sheepskin boots in harsh weather conditions or after you have washed them. It provides a breathable layer of protection against water, snow dirt and stains that keeps these elements on the surface where they can be easily wiped away.