Crocs Tone™ helps deliver the benefits of toning with the comfort of Crocs. The innovation lies in the three-part patent-pending Crocs Tone™ sole:

• Sculpted outsole creates a rocker effect while you walk that can help initiate key muscle activity to provide toning benefits.
• Toning ring is designed to help moderate movement and provide support contributing to increased muscle activity.
• Comfortable, lightweight croslite™ footbed provides all-day comfort.

I've tried them on and it's definitely comfortable, does not give you those nasty blisters when you get from new shoes. I actually wanted the Espresso coloured but they didn't have it in my size in any of their stores. Sadness ): but with the help of baby I settled for the Black/Neon Pink Skylar Flats.