To provide a shirt, the collar part and the sleeve part of which are easily detachable, and which has good wearing feeling and also good appearance.

The shirt includes a shirt body 1 and a collar part 2 formed to be separated from the shirt body: wherein the collar part has a strap-like collar stand 3 surrounding the neckline, a collar wings 4a, 4b sewn to the upper edge of the collar stand, and an overlapping piece 5 sewn to the lower edge of the collar stand to be provided on the outer peripheral side of the collar stand; and buttons 6a, 6b, 6c, 6d are sewn to the fabric surface side of the overlapping piece at positions adjacent to its longitudinal both edge parts, its center position, and the vicinities right above the shoulders. The shirt body has a front opening part 7 and a neckline part 8 is formed into a round neck shape. The neckline part is provided with buttonholes 9a sewn in the overlapping piece. The buttonhole for the button 6a is laterally formed in the vicinities of the longitudinal both edge parts of the overlapping piece, and buttonholes for other buttons are vertically formed. The overlapping piece of the collar part is overlapped on the inside of the neckline part 8 of the shirt body so as to be buttoned so that the collar part is detachably fitted to the shirt body.