Bought some new breathable waders in November with the neoprene sock and some river boots. After wearing them about 10 times, they are already starting to leak on both feet at the bottom of the neoprene sock. I'm going to take them back, but I was wondering if any of you have had problems like this before? I'm scared to get the same waders again (there were only about $179), maybe I should invest in the higher priced ones?