I have had mine for almost 2 years now. I have not had 1 problem with them. They have gone from Snow in the mountains at -2 degrees to the desert floor at 120 degrees and even in murky nasty water in high humidity. They have remained comfortable and fit like a glove. I am looking at getting some Chameleons EVO Gore Tex next as it is very hard to find Sawtooths in size 12! Sorry some of you had bad experiences with the Merrells, but mine are fine.