I am an active 66 year old who does Jazzercise and regular walks & hiking with girlfriends, and I love these t-shirts for their higher necklines, cap sleeves and flattering fit. They run a bit snug but I was already aware of that and ordered mediums ( I weigh 120 lbs). I lay them out flat to dry them on the table to avoid any possibility of shrinkage. I was surprised at how quickly my order arrived! Warning: the Antique Cherry Red is more real red, the Scrub Green is very kelly green, and the Heather Royal is more pale blue.