Engineered with independent, multi-directional nodes, the TrainFlex DC is a lightweight shoe designed to be flexible, yet protective while you train. TrainFlex is built on a low-profile, dual density midsole for added stability when training.
This is my first ever pair of ultra-flexible shoes so I don't know if it's this style of shoe in general or just this particular one... but they are a bit too narrow for my liking. I've got enough room in the toe box but it's too snug in the forefoot. Disappointing because they are very light, look great and have decent padding.