Pro- They do give you a nice base layer and help keep you warm.Cons they fit like I tried to show them myself. I am 6'3" 230lbsPants are too short but the crotch area goes down half way to my knees. So if you try to put pants on over them they run into the pants. Terribly uncomfortable.Shirt seems okay on length but the sleeves are not tight enough around the wrist for a base layer. I had this shirt on under another shirt and by doing normal work somehow the base layer shirt pulled the sleeve up past my elbow.Returned for my money back.