This shirt looks great and is highly functional with all the pockets on the arms. The material on the torso is thicker than the shirts like this by Rothco sold here on Amazon. The sleeves are also thicker and more durable. Most importantly, these come in long unlike the Rothco shirts, which are too short in the arms for me (and sizing on them is inconsistent). The sizing on the Propper shirt is all around good. The bad point is mainly the way the arms are connected to the torso of the shirt. It is very tight at the junction and there is some of the ripstop material right at the armpit that can cause chafing. My arms and shoulders are normal size and not overly muscled so this shirt would probably but uncomfortably tight on someone buff. I can get around the chafing by wearing a tight T-shirt underneath but they kind of bunch up in the body part. Maybe a larger size would fit better but I followed the sizing chart. I am 6'1" and have a 44" chest so I ordered an XL Long. XXL would probably be too big in the body. I like the longer arms though so I will be keeping it. Good shirt, just weird cut around the pits...