I have a weird question to ask about the Teva sandels. Can they be worn with sox? Or knee highs? I have very sensative feet and can't stand shoes that rub my feet (especially ones that have straps or seams). And with having diabetes, I have to really be careful not to get blisters. I bought a pair of "Earth" shoes that have velcro straps across the top of the foot -- wore them 30 minutes and couldn't stand them. I'm afraid to invest in a pair of Teva's, then not like them