I love my Sorel Conquest boots but the rubber on the sides of both boots has split open. The tread is still in amazing condition as is the leather and even the laces are still like new but with the rubber split open they are no longer waterproof. I was hoping you could help. I tried putting a waterproof sealer/patch on them with no luck. I included a picture of the bottoms along with the damage so you can see there is plenty of tread on them because they were not used that often. Thank you