The sizing for these shorts is absolutely tiny. I usually wear a size UK 8-10 in brands such as M&S and Next and wear size Small in Nike and Adidas however I needed size Medium (14-16) in these. I am 5'8" and these are shorter on me than on the model in the photos on here but still modest enough to wear running. They wash really well and I now own 2 pairs. So I'd recommend them but order a size up!