Latissimus dorsi - responsible for those sought-after 'wings' in serious bodybuilders. Consider too trapezius, rhomboid and those small muscles which comprise the rotator cuff. Also in a back view, we can admire the development of the rear and side deltoids.  We commend the increasing tendency for more and more fit guys to post their back views as well as chest and abs in normal 'flexing'. So let's be inspired to work harder on the bits we have to stand between two mirrors to see!    The last word goes to the young 'uns, as usual!  

 If you want results like the examples in today's post, you know what you have to do. TRAIN REGULARLY NO EXCUSES!!!!