Wonderful flip flops! Beautiful, excellent fit, lightweight, foot doesn't slip inside. I haven't tried them in water to know if they slip, nor can I judge their durability because I've only had them for a month so I reserve judgment until I try them for a longer period and in beach/pool conditions. As for their size, I got one size larger than my regular shoes and they fit perfectly. Due to their low price compared to others, I didn't have very high expectations, but in the end they may have turned out to be much more comfortable than other more expensive ones I bought. So they are worth their money and more, and of course I would buy them again.