100% Cotton Button closure This short-sleeve version of our signature cotton oxford shirt is a classic choice for beach days, barbecues, and everything in between. Size medium has a 30 back length, an 18 shoulder, and a 41? chest. Button-down point collar. Buttoned placket. Short sleeves. 100% cotton. Split back yoke with a box pleat ensures a comfortable fit and a greater range of motion. Left chest patch pocket. Multicolored signature embroidered Pony at the pocket.