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 F-LO Training Shoes are a unisex shoe, so we separate our sizing with an "M" for men's sizes and a "W" indicating women's sizes. So, for example, if you're a ladies 7 then select the M5.5 which will also select the women's equivalent being W7 (which is Men's 5.5 / Women's 7). You can also see further sizing information by clicking the 'Size Chart' link on the item page. The best way to determine your size is to remove the inner sole from a pair of shoes which fit you now and measure it. Use this measurement against our size chart to determine your best fit.
Our Black, Taupe and Tan Power Trainers are also a unisex shoe which we also separate sizing with an "M" for men's sizes and a "W" indicating women's sizes. There is also a size chart located on the item pages next to the images.
Our PINK & GREY 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.