When I first tried to put the Uneek sandals on they were almost like trying on a griddle for my feet. Although I did manage to squeeze into them with much difficulty. I thought that because of the way these sandals are made that eventually the cords would stretch so that the sandal would fit better. I was wrong. After wearing them for approximately 1 hour I took them off because they were hurting my feet. Then I wore them a second time, easier to put on this time and a little more comfortable. I'm always willing to try a few times before I pass my final judgement. After about 2 hours of walking around at home The strap across the heel was causing pain so I took them off. I would think that the sizing of these sandals must be wrong. I usually wear a size 11 so I ordered size 12 after reading other reviews. Still not a good fit. TOO SMALL! 09/07/2015 UPDATE: I returned the first pair and I was issued a refund immediately. I re-ordered the Uneek sandals, only this time I ordered a size 14 which is 2 sizes up from my first order. I received the Uneeks as promised and on time. At first I noticed that the fit was much better than with the first pair. I guess my feet are growing as I grow older or the people in Thailand (where these sandals are made) have a different shoe size standard. Anyway the fit is great and the sandals are comfortable now.