
Mine are made by Teva and I believe they are the original and still the best. Keen (Simms' sandals are made by Keen) also makes similar ones too. It's really amazing how comfortable these sandals are as well as durable. Did I mention light? I bought the ones with rubber inner soles since they will get wet often. The street versions have suede inner soles which are said to be more comfortable, but handle water badly since untreated leather will crack eventually.
Obviously these sandals are great for wet wading (not the really tricky river situations though, just for rock hopping style of fishing) as well as wading in tropical saltwater fishing.
Check them out at your local outdoors or sports outlet.