I have horrible arch problems with my feet and after trying pair after pair of flip flops I was about ready to just give up. Until a friend of my mom's came to visit and was wearing these, she let me try them out and they're fantastic!! Great support for my heels and arches, they don't slip off or feel loose at all, and are very squishy and comfortable, plus the thong part isn't at all uncomfortable. I'm definatly ordering my own because I don't think she'll let me keep hers!