These are the real deal. Have worn these for several years and I would never even consider any other. These fit better, have a much more comfortable material and have a better waistband than the UA Heat Gear. Not that the UA Heat Gear has anything wrong about it, I have also worn them for many years as well-I like to mix thing up! You will not be disappointed and even though they may be pricy, they will serve you well for several years.
These Body Armour briefs have a nice soft feel, but the elastic waistband is much too small for the size ordered. I wear a medium in everything, including other brands of boxer briefs, and they fit fine. With these, I ordered a Large, figuring they may have a snug fit. The briefs themselves were fine, but the elastic waistband was made for a small or xsmall. Very tight, I could hardly get them up and down, and in and 'emergency', that can be critical. If you are going t order these, try getting TWO sizes larger than you usually wear and they may work out.