These boots do not breathe AT ALL. My feet become overheated and wet while wearing them. My feet feel like they are on fire! I dread wearing them. I have always owned waterproof leather boots and I have never experienced this before. Additionally, the midsole is already becoming damaged after less than a month of use. I reached out to KEEN and they wouldn't issue a refund or make any attempt to assist me. They don't back their products or care about their customers. I will never buy from KEEN again.