This brand-new belt bag/fanny pack from lululemon has it all, with water-repellent fabric, adjustable straps, a two-way zipper for the main pouch, mesh interior pockets, and a special zippered pocket on the back for extra security. Can be worn at the waist or crossbody. Measurements from the lululemon site: * Bag dimensions: 21cm x 5.7cm x 14.6cm (8.3" x 2.2" x 5.7") * Strap length when fully extended: 114cm (44.9") * Volume: 2L