These are really cute but definitely not for any serious workout. They lack the normal support that my other New Balance shoes have. They also appear to be made from cheaper material than the original NB shoes. They come join cute colors but I certainly would not have kept them if I'd paid full price for them.  As they were a real bargain I will use them for cycling. I did try them on the elliptical trainer and would not recommend them for that or treadmill training.