I got tired of snagging expensive U Arm shirts.  Have tried Hanes Cool-Dri (various deals here & direct from Hanes).  I just recently purchased Vapor and DriEquip here.  The Hanes colors are more limited.  Vapor actually feels a little better to wear and I think I like it best.  The DriEquip has some snazzier colors but doesn't fit or feel quite as good as Hanes or Vapor (Vapor is more expensive).  Vapor and DriEquip might be sized a tad smaller so I ordered up in size and that turned out to be a smart decision. I'm a XXL guy but went with 3x.  The shirts are a good alternative and you save some dough.  I'd rate all three shirts 3 1/2 to 4 stars based on price, quality and feel.