Our molle ridden Mission Bottle Sling is designed to carry any Grayl® Purifier Bottle and can handle most water bottles up to 40oz. Dual cinch top closures keep your bottle secure while on the move. Fully adjustable for left/right or front/back and it has multiple shoulder strap clip-in points to adjust the way your bottles lies on your back or front-side. The large full zip front pocket is designed for a smartphone or other essentials. Sidewalls are molle equipped to attach and carry smaller pouches.