Bought the same pair last year at a Dept. Store and now unavailable. The reason is design change. Now the bottoms are slippery an hard plastic when they were foam and non-slip. Walking on ANY surface with these is a fall waiting to happen. Changed to Teva Mush Original due to product design change of hard plastic emblem at heel. Comfort and safety are a premium or a customer is lost. I will try Cobain Bounce Sandals if Teva is a let down.