Sport Shirt

Sport shirts get away with more patterns, bigger and bolder patterns, pockets, epaulets, decorative stitching and buttons, button-down collars, etc. Sport shirts can get away with collars that are less stiff. Side note: The stuff that makes collars (and cuffs, and front plackets) stiff is called interfacing. Usually sized with the Alpha scale (i.e. S,M,L...)