These are the best slippers/Mocs Ive ever had, my feet tend to sweat especially in stuffy slippers, so the lack of lining is perfect, great barefoot feeling with the leather bottom, but thick enough to keep the feet warm on a cold cement floor and dry on a damp one, I wore them mopping I ordered a full size larger than my shoe size, have a little room, tightened the laces and they fit just fine.