They give me blisters and my feet feel really sweaty in them.
Same here. I have the Newport style and not only did my feet sweat and slide in them, the soles stunk to high heaven. I had to soak my sandals in vinegar and water to get the stink out. And I also scrubbed it down with Nature's Miracle. I contacted the company and asked if they have had other complaints about the soles and unfortunately they did. Hopefully they used a different material so the shoes don't offend as bad.

I would rather wear Birks or Merrells.