In the nineteenth century, normal shirt sizes were 14.5 to 17 and today, more than a century later, these sizes are still considered to be the norm in exactly the same way: by next and sleeve. Nowadays there have been some extra mens sizes now available with the addition of 17.5, 18, 18.5 and 19... the king-sized shirt if the day. Work shirts, knit shirts and sports shirts have evolved on their own, or mirrored dress shirts in their style features. Mens shirts had always been long sleeved or protection, until a detachable sleeve appeared during WW1, along with an actual short sleeve version. Usually, if you wanted shorter sleeves when working in the hot summer months (in the UK???) you just rolled up those long sleeves. For the first three decades of the twentieth century, casual attire
