I've seen &collar a few times on Instagram and finally decided to try it out. I ordered 4 shirts and every single one of them is awesome! I usually wear a medium, but they were way too tight, so I sized up to a large and they fit perfect. I had NO problems with the exchange process - it was super easy - but just be aware you might need to try a few sizes to find your right one. The material is light and stretchy and so comfortable. My favorite part is you can wear them tucked in or out - both look great! I will definitely buy more the next time I need a few shirts.