I got the medium because that's the size I wear in all my clothes. And some thermal ones. I got the medium in white and black. Both were way too tight for me. If you're thinking of getting it, take one to two sizes larger than what you wear because it will be for babies if you take your size

I have already bought 4 identical shirts for everyday gym workouts. Excellent quality and fit. Even if you sweat to the point of dripping from head to toe, I had no issues with sweat or odor. Highly recommended if you are looking for something durable and resistant to frequent washing.