The hallmark of any good Teva tan is the little triangle near the pinky toe where the straps join together. Some of the newer model Tevas seem to have done away with that triangular opening, or covered it up with some padding.
My Terradactyl's have served me well for the past several years, but it's time to get new ones soon. Actually I probably should have gotten new ones last year. The treads have worn down and I'm starting to slip and slide a little on wet surfaces. If I can find another pair in some store's leftover stock, I wouldn't mind another pair of Terradactyls, but I'm liking the look of the Terra Fi and the Stratum.
Tevas rock. They just do.