Got my first Half Maratgon done in this top yesterday. I definitely believe in the 'look good, feel good, run good' principle and boy was this tee perfect for that. Not only is it striking in design, colour and pattern, but you can tell it's also made with high quality material. Its a good enough weight as to be very durable, but not so much so that it caused any issues with overheating or chaffing. I got several compliments from other runners who asked where they could get their hands on one. I'm a medium and the fit was perfect for me, but I do like a looser, more relaxed fit. If you prefer a more fitted feel, you may want to go a size down from your usual. Thanks Ben and the team. It was great meeting you all at the National Running Show earlier this year.