As wonderful and comfortable as all crocs are, the Athens thong is easily the best model this great company has released so far. The heel is much more deeply cushioned/supported and stabilized than in many other crocs, and the sole conforms to the natural contours of human feet (providing just enough lift for spinal alignment like you'd find in Dansko clogs). The Athens could easily be worn in place of a running shoe for all-day walking on almost any type of warm-weather terrain. If fact, it's probably better than a running shoe in terms of both bouncy, supportive comfort and general lightness of weight. Fantastic!!!