One downside to 'Stocks, they are not waterproof. Sure some people wear theirs at the beach and even get them get them wet, I wouldn't recommend it. I like the ease of a flip flop on the beach and poolside. But most flip flops are very flimsy and offer no support and no shock absorbtion.
I bought a pair of Orthaheel flip flops for my kid Lena about three years ago. She has very flat feet and needs more support than most sandals made for teens could offer. They were on sale for $29.99 in the Herrington catalog. They are regularly $44.95 and up . The whole line of sandals, slippers, clogs, and orthotics were created from a design by Dr. Andrew Weil, whose name is on the brand. The flip flops are made of rubberized material,which makes it water-friendly, and they have an orthotic footbed with a nice arch support. They are made for those who have plantar faciitis and flat feet, but I started wearing Lena's pair and realized they offer much comfort for anyone who wants the ease of wear of a flip flop and a well constructed shoe. I have since bought my own pair. I always get them on sale online (either try the orthaheel site, Zappos, or ebay), at a cheaper price than their MSRP. They arent't super stylish or flashy, but they aren't old-fashioned or weird looking either. They usually come in different colors. They are for men and women. And they are true to size. Unlike classic flip flops, they last more than a few seasons. And for serious flip flop wearers who like to wear them year round, they keep you supported as if you have good a good pair of shoes while allowing you to feel like you are wearing next to nothing on your feet. A true win-win!!
Orthaheel Tide Flip Flop (orthaheel.com)