this be my second pair of Rainbows . of all the flip flop I have own over the year , these be in a league of they own . they be by far the most comfortable and foot-supportive that I have own . I use to be a huge island slipper fan - they be not close to the comfort of Rainbows . they also have a unbelievable warranty . like a pair of Birkenstock sandal , rainbow require a break-in period . the flip side be that break-in mean that they be adjust to you foot .