You can't put insoles in flip flops, but Superfeet has found a way to put flip flops in their insoles. Superfeet Outside Sandals bring the structure and contour that make feet feel good on the inside to the 360-degree exposure and unencumbered thong shape that make them feel good on the outside. Superfeet's take on the official footwear of summer look pretty damn good too.
Outside flip flops have a sturdy, non-marking rubber sole with slip-resistant traction. The sandals' insides curve gently downward from toe to the ball of your foot, back up over your arch, and then drop into a "basin" at the back. This area forms a deep heel cup to cradle and position the soft tissue of your foot to absorb impact naturally. Superfeet tops their Outside Sandals with a layer they say is soft enough for comfort, but not foamy or squishy. The flip flop strapping is a quick-drying combination of synthetic leather and neoprene.
Superfeet Outside Sandals for men come in colors Iron and Bison. The company also makes a line of Outside Sandals for women here.