Fabulous! This is a great tri suit the combination of fabrics makes for a great fit and allows for maximum freedom of movement. It is cool and breathable and we love the styling. We are often asked suit or separates, this really is personal preference, but the benefits of the suit that we like are, they hold everything together nicely and you are not tempted to keep adjusting your clothes, you are not pulling down tops or rolling waistbands, you do not worry about exposing yourself when removing wetsuit at speed and the all over back coverage does offer more protection from the sun particularly on the bike leg. A medium equates to a size 12.