Nothing says warm weather like a pure linen sport shirt. The fabric of this one comes from Italy and will get even better the more you wear it in. It's got short sleeves, a soft, nonfused button-down collar with an especially nice roll to it, an extra button at the back of the collar, and a popover placket where the buttons stop halfway down. And, as always, there are extra-thick buttons, a long-enough-to-stay-tucked-in shirttail, and an overall cut that's slim but never skinny. (FYI Sid likes the extra length, but you can always get it shortened.)
