I use Shoe Goo for all kinds of repairs. It works great on my kids' toys when they have a mishap. I tried it on my boots, but the hole is so tiny and deep in the seam that it didn't work. I needed something thinner. Another product I use like that is Dynaflex, look for it in the caulk section. It can seal almost anything. There's even a marine version, Dynatrol, that can withstand UV radiation and salt water. If you get that on your skin, it has to wear off.