Thinner, but great for layering. Very stretchy. I’ve washed and worn mine many times and have never had any problems.
I am 5'4" 103 lbs. I bought a small and it is nicely fit through the body. The sleeves are snug at the top, loose at the wrist, and long enough, which is nice. When washed, one side of the neck edge binding curled badly, and I struggled to get it back in shape with my iron. The entire shirt twisted quite a bit. The fabric is thin rayon, and if you are looking for body conscious, it certainly is. For the price, I don't expect perfection, but it would be niceer if it looked better after washing.