We have a few styles of shoes so we've provided their details below:
Our D-Maks are specifically designed for use in the gym with weights given their unique flat sole. We don't recommend using them for cardio or casual though given their flat sole. Most of our D-Mak shoes are in men's US sizes unless they are titled 'Ladies', which are in ladies US sizes. Our D-Mak's are made with a D width but can fit up to a 2E width foot. This being said, we always recommend referring to our size chart to determine the best size for you. The size chart can be found next to the display picture on the product page.
Our Neon Yellow Power Trainers are specifically in ladies US sizes and are ideal for training and cardio, you can refer to the size chart to select the best size for you.