i literally wore through my crocs and had to throw them out, bought 2 news pairs and have been wearing them everyday, and they are tearing my feet apart. i don't wanna wear sneakers cuz they make my feet too hot in the humidity. so now i'm looking as either a pair of birkenstocks or a pair of bass sandals. i'm leaning towards the birks, but i'm concerned about my foot sliding out. does any one wear these to the parks? we're leaving in 20 days so i really gotta make up my mind. i keep buying shoes that feel good in the store but after a day of chasing the kids my feet are killing me, any suggestions?