While Robinâs build is far from extremely muscular, it should be noted that he is not physically weak, either. His brute strength doesnât come to par with units such as Chrom or Lonâqu, and doesnât even touch Basilioâs, Vaikeâs, or even Frederickâs, but for a unit that is arguably more useful as a mage than a swordsman, he is still quite fit. His stomach is flat, and although he doesnât have defined abs, he does have a well toned stomach, partly from a workout routine he tries to keep up. His chest and biceps, however, is what Robin is really proud of in regards to his own body. His pectorals are quite defined and very well-muscled, as are the tacticianâs biceps. This is mostly because of his training routine for his swordplay, so his chest and upper arms are overall well defined, and perhaps not something someone would expect the average mage to possess. His back and shoulders, while defined with lean muscle, are not quite as spectacular as his chest or arms, but they are not âboneyâ, either. Past his stomach and chest, to his waist, hips, and legs, Robinâs confidence begins to be lowered. His hips are lean and narrow, â as should anyoneâs be with his body buildâ, and although his thighs are covered in lean muscle and defined from his years with the Shepherds, he still thinks them to be less than desirable, and he thinks the same of his lower legs, unfortunately.
   Robin makes an attempt to keep his lean but muscular build for a few reasons: he needs to have at least a decent level of physical strength if he wants to wield different types of swords with relative ease, and simply because keeping an athletic body is good for oneâs health. He makes an effort to try and stay in shape, partly because he fears falling behind, or losing his âtouchâ with swordplay, but also because he needs to stay in good health. He has far too many people that depend on him to not stay fit and lean, and regularly tries to remind himself of this so he does not become some liability for his family.Â
   TL;DR: Robin isnât as buff as some of his friends, but his physical strength shouldnât be laughed at either since he still has to be strong enough to wield certain weapons. He has a lean and lightweight but powerful build.