This brushed Portuguese twill makes a great cold-weather sport shirt for layering or wearing alone. The Slim Fit has a trimmer body and sleeve than our Standard sport shirt, as well as a slightly higher armhole. It's a good choice for guys with narrower shoulders and those who prefer a closer-to-the-body shape. It's got a modified spread collar, the exact same lightweight interlining, extra-thick buttons and long-enough-to-stay-tucked-in shirttail of every Sid shirt… just with a little less fabric. (FYI Sid likes the extra length, but it's easy to shorten if you prefer.)