The shoes are like a second skin, giving you an almost barefoot feel, but with protection for your feet. I purchased the classic shoes because they have a forefoot strap as well as adjustable straps on the heel so that the foot fits snug into the shoe. I've tried the shoes on a number of surfaces and here are some of the pros/cons of the shoe.

I love these shoes. I concur with others that they give you this uncanny sense of liberation. Most importantly, they are comfortable, I can do anything with these shoes on, be on my feet for a longer period of time, and have no joint/foot pain when wearing them. Best of luck with your selection!

Perfect and cute Shoes. The only reason I gave it 4 stars overall is that more much time than expected for delivery to the States.

Doesn't smell but does get your feet warm.

Perfect for anyone who does Crossfit. These shoes help create a much more stable base than regular running shoes. Also, with there being no heel you are able to squat much deeper than with shoes with a big heel.