Why one buys such a shirt? I wanted to have it, so I have a little more space in the shirt and not the entire evening are, but sometimes can sit without the buttons to jump from just the shirt. That did not work out. Luckily I have tested before and in this case, tightened his shirt only with a normal undershirt and then with this shirt, it was equally tight in both cases, have it measured with NEM tape measure. It was clear that I do not get a six-pack by the shirt, but 1-2 cm less waist circumference I've expected. I have it ordered in size XL, as so is a lot of waist circumference available. For me it's finally a tight undershirt with thick fabric made of nylon -> you sweat like a sauna.
