I’m 61 years old, 5’4” approx 125 lbs, waist 30”, chest 35” (bilateral mastectomy with flat closure). The quality of these shirts are great. Heavier than expected, surprisingly soft. If you’re sizing for adults it’s a little tricky, I’ve ordered 3 in different colors/sizes. White 14/16 Plus. Black 14/16. Yellow 18/20. 14/16 is a rather snug, but still wearable. 18/20 is a loose fit. 14/16 Plus fit best but is a little big in the bust (or in my case, lack thereof) Being that they are made for kids, the sleeves are predictably on the shorter side and can be snug in places, but I’m not taking any stars off for that obviously. They make a nice basic addition to my wardrobe.