Living under the Sun seasonally in 3 states, I often find myself in flip flops. However when purchasing a few pair at the end of the summer sale, I easily noticed although I had the right size; they were loose. This hazardly causes me to crimp my toes; keeping them on while walking, which then creates leg cramps. Humm… six new pair……. a solution, tighten the toe strand. Okay you need a good needle & sturdy thread…..but at $7.00 a pair…… well worth it!