They are lined on the inside. I am not sure how well they breathe. The AE store manager did relate the mesh does breathe better, which is why they consider it a good seasonal shoe for warm weather.Sent from my iPhone using Tapatalk
One of my pairs of Daltons were squeaking. In my case it just took time and patience. The squeaking gradually went away after wearing them 1-2 times a week for a couple months.Sent from my iPhone using Tapatalk
I just added a new pair of chocolate brown Daltons to my rotation. While I was puting them away, my wife looks over my shoulder and says, "...how many pairs is that now? I think you need therapy..."