FRTCV Mens Polo Shirts

I ordered large and I received 4xl. I read another review and who dispatches the sizes has big problems. my son is thin and the pullover has good fabric; but it's for your fat grandfather

The style is great. But the sizes are way smaller than ordered. I wear a medium 1st time, ordered a large the 2nd time and still too small. I normally order med. and it fits.