I was using this to repair holes and tears in Muck boots but after a while it comes loose so I went back to aquaseal which is more expensive but flows into small cracks and sticks better.  Shoe Goo is probably better for reattaching soles and repairing cracks in lopper storage containers stored in the woods which got hit by falling branches.  Shoe Goo also successfully repaired my solar shower after it slipped off the car hood and got pierced by a sharp stub from a cut small tree.