Abstract: A shirt for a user wearing pants and for preventing sand from entering the pants when the user slides. The shirt includes a body, a pair of sleeves, a neck band, a shirttail, a front placket, and a flap that extends circumferentially and completely therearound and depends from where the body meets the shirttail. The flap has openings that align with, and allow passage through, of belt loops on the pants When the shirttail is in the pants and the belt loops extend through the openings in the flap, a belt is passed through the belt loops and overlies the flap, and when the belt is fastened, the belt presses the flap against the waistband of the pants and traps the waistband of the pants between the flap and the shirttail, and in doing so, prevents the sand from entering the pants when the user slides.