These shoes are adorable! They are leather, which I should've realized. Thought they were woven fabric. They do seem pretty breathable though, but it hasn't gotten very warm. I have worn Dansko shoes for years, always a 37. Got these in a 37 and MAN are they tight! Wish they'd had a 38. So I suggest going up a size. They are leather though so they'll probably stretch out (already starting to).