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:  

Lats 'n all that. Frequently overlooked in selfies but very important to train for these V-shaped 'wings' - and for strength obviously. Add good helpings of rhomboids and delts for good measure, and don't forget those little muscle groups that make up rotator cuff (featured at the end)... Great examples here alongside those who are on the pathway. Enjoy and be inspired to train. Pull-ups are an invaluable back exercise, and young Carl H wastes no opportunity to get to work... This last one - of determined jiu-jitsu fighter Emil B, is a great upper back exercise which also engages those rotator cuff muscles (teres minor, supraspinatus, infraspinatus and subscapularis if you want to know) - and also the serratus anterior which wrap around the ribs under the armpit and are good for throwing a punch! When workout out it is always good to think about those little muscles which contribute so much to your overall strength and abilities...