An often-neglected part of the body when it comes to posting on social media. Great development of lats, delts, rhomboids and rotator-cuff elements can be impressive, as these guys who very clearly love their training are only too eager to show us! Many guys seem to neglect back and legs when working out, focusing on chest, abs and arms. Don't!  Start young:  

Back in the day, everyone was measuring their chests and biceps as if the numbers represented fitness. Size isn't everything and, with the advent of social media, guys are now much more concerned about their overall appearance - in other words, aesthetics. A fully 'balanced' musculature - and, yes, its OK to be slim with it as some of these examples show. Today's guys clearly have that mindset! Where best to show off aesthetics than in the gym? The locker room is another obvious place for showing off... The rising generation want 'in' on the aesthetic action too... And, finally, some swimwear show-offs!