When I started getting serious about transforming my body, I had bought a pair of Nike Free Run 3's. I had purchased a couple of pairs previously for my wife and she had really loved them. I really like these shoes and they are very comfortable. I'm not a runner, but I'm sure that these shoes would really excel and that I'd feel the comfort running in them. The only thing that I noticed and which is to be expected from wearing running shoes to do cross-training is that they offer little lateral support. Because of this there were times in my training that my shoes felt fairly loose, side-to-side. I still use them from time to time while cross training and would purchase another pair, but for serious cross training I would recommend the Adidas Adipure Trainer Shoes.
These are those funny looking Adidas Toe shoes that you see people wearing around the gym. I hadn't really heard of them and probably would not have tried them on my own. I heard the benefits of these shoes from my wise father. And because my parents own and operate a sports store in Western Samoa, they even sent me a pair to try out. The first time that I went to try them out, I couldn't get my toes to go where they're supposed to and gave up. While getting the toes in place is still something that takes me some time, as I manipulate them in. Other than that I do not have any problems with these shoes. In fact they are now my primary workout shoe! They really make all the different movements in my workouts feel more natural. They are comfortable, extrememly light weight and cushion surprisingly well. Currently Insanity Asylum Vertical Plyo would be my extremly high impact workout, and I wear these shoes doing this workout as well. I do not notice any addition jarring or discomfort. While I will still buy regular cross trainers and running shoes, I am also going to buy more of these Adidas shoes and will continue to use them for the large majority of my workouts!