Over the last couple of years, I've noticed that I tend to get arch pain and leg pain easily when I'm wearing cheap shoes, esp. flip-flops.  Unfortunately for my bank account, the only shoes that I can wear all day and not end up with pain easily run me $80+.  I love flip-flops in the summer, and these Crocs are just perfect.  They provide the support I need all day long.  I can (and have) worn only these for a whole week at the beach and never experienced any foot or leg pain.  At first, I balked at paying $35 for a pair of flip-flops, but after wearing my first pair for a summer, I was hooked.  I consider them to be a bargain and now own 4 pairs.  They look great with most summer outfits, too (admittedly, I'm a shorts-and-tee kind of girl, so they look great with most of MY outfits!)  I will continue to buy these for as long as Crocs offers them.