The Selvedge Yard has posted a spread of vintage photography showcasing acceptable ways for men to don short sleeves. To accompany the photos, the author delineates three simple guidelines for you to adhere to in order to always look sharp: first, never wear a tie or scarf with a short-sleeved shirt; second, don’t combine short sleeves with shorts; and third, added as more of an aside, include an attention-drawing belt in the mix for a bit more flavor.