I bought this shirt in several colors for sun protection. I am a US size 6 and the small fits loosely, a lot like they fit on the model in the pictures. This made them comfortable enough in the hot weather, but not flattering in pictures -- they just look baggy. While I didn't buy these to be active wear, I did end up wearing one for some short hikes and found that they kept me warmer early in the day and cool as the afternoon started heating up. The first Underwater Blue one that I received had sleeves noticeably shorter than the other colors that I had ordered. I returned it and ordered another in the same color, which arrived with longer sleeves. The Razzle Pink is much brighter than the pictures; it's a bright coral. I did not like it. I returned it and ordered the Fresh Berry, which was not as bright as the picture makes it seem, but is a nice fuchsia. For the price, they were a great option and provided the extra sun protection that I needed.
Rating: [4 of 5 Stars!]