I already own three pima cotton long sleeve shirts. I own two that are V-necks.
I ordered the next size up because I have broad shoulders. It is a little big on me especially when I sit down. But I can always throw it in the dryer to let it shrink a little. I would not recommend doing this to the pima cotton shirts that you do not want to be a little smaller.
Otherwise, I love these shirts. They are so soft and comfortable.
I ordered this in several pretty spring colors. I like the v-neck...very flattering and the fabric is a very nice weight and can even be worn on dressier occasions. I found the length to be a little on the short side, and the fabric did pill slightly after repeated washings and dryings, but overall I was pleased with this item.