These shirts are much better than "normal" undershirts.  My husband wears suits to work and goes to the gym during lunch.  He used to feel like he sweat through his clothes after his work-outs but now, these keep him cool and comfortable.  They move and stretch with his body.  I started by buying 1, then got 4 more when he said he loved them, then he bought 5 more.  This is all he wants to wear.  He was telling his friend about them and his exact words were, "These will change your life!"  In the pictures, it looks like the Under Armor thing on the chest is gray, but it's actually just reflective.  It will not show when wearing these under a white shirt.