You have no idea how much I love long-sleeve tops. Since the ballet days, this piece has been a must on my wardrobe because it is versatile and comfortable. There are tons of different fabrics and designs. There are the cotton ones, the sweater tops, the dressy, the sporty, the elegant, the comfortable, you name it.
I usually buy them extra large because I like to show my shoulder from time to time. I like to wear them with leggings. Sometimes I throw in a belt or statement necklace if I want to make it more dressy.
You can find the tops here.