Abstract: Swim trunks formed by a piece of fabric contoured to define a waist and a pair of leg sections, the fabric having a side seam extending between the waist and the lower end of one leg. The seam is interrupted to form a slit whose edges are secured to the complementary tapes of a zipper and to the sides of a pocket. In its normal state, the pocket is interposed between the inner surface of one leg of the trunks and a loose liner suspended from the waist and conforming to the contours of the trunk. The zipper includes a slider having a double pull tab. The outside tab serves to open and close the pocket in its normal mode when the pocket is usable to carry keys and other small items. The inside tab serves to open and close the pocket when it is pulled inside out to function in the reverse state as a carry bag into which the trunks are stuffed. One side of the pocket is provided with a pair of eyelets through which a string is looped, the bag being held from the string in the reverse mode of the pocket.