Seems well made. Very comfortable sponge cork insole. I just got them and wear them all day, mostly standing up with no hot spots. The heel drop function takes some time to warm up and get comfortable. That's what I liked about these shoes as I'm a big fan of flip flops and wanted to slide in them. I wear 10.5 shoes and got 11. As they only appear to be one full size, if you wear full size shoes I would buy the next full size. I would say they are a bit small as my toes sit comfortably at the end of the shoe. It is great. If I wear them for a while I might get a second pair.