Feature: 1. Material: It is made of high quality 1000D nylon oxford fabric.With high durability, waterproof and quick dry performance. 2. MOLLE System: MOLLE friendly. Special designed for vest backpack and most gears with MOLLE systems. Excellent combination, can be used for any situation like airsoft hunting hiking and any other outdoor activities. 3. Modular webbing system: This hydration bag is also designed to carry water bags through a modular webbing system that can be attached to your vest or backpack. You know better than anyone how to quickly access water that may save lives, so this bag can fully adapt to this way. 4. Practical Design: Double pockets-a main pocket with a small pocket, three pieces of loop system panels, three-sides molle systems. And the main pocket has three opening place for access easily, double zippers design for pocket are convenient to use. Double quick release buckles to lock the pack more safely. Two hidden interlayers, better to classify your items.