Abstract: A carrying bag comprises an exterior pocket which includes a back wall, a front wall, an elastic side wall and a zipper assembly. At least the lower half portion of the peripheral of the back wall is seamed with the back edge of the elastic side wall. At least the lower half portion of the peripheral of the front wall is seamed with the front edge of the elastic side wall. The zipper assembly encircles the back wall and the front wall. When the zipper assembly is completely unlocked, the thickness of the exterior pocket is resiliently expandable to accommodate articles of various thicknesses, including an ordinary drink bottle.

Abstract: A carrying bag comprises an exterior pocket suitable for carrying a drink bottle in the exterior pocket which includes a flexible sleeve. A first end of the sleeve is seamed to an inner peripheral adjacent to the aperture of the exterior pocket and the second end of the sleeve includes a drawstring system for controlling the size of the aperture at the second end of the sleeve. The drawstring system comprises a drawstring passage and a drawstring passing the drawstring passage.