All my wetsuits die in the same way: I get these spots where the neoprene gets thinner on the knees and right above the butt. The whole suit will be in tact but it will be useless in winter because it leaks straight through those compressed spots of neoprene. Do you have any idea what causes this? All the suits seem to get these after 2-3 months of use and are throwaways the next season :/