IDEAL MUG ACCESSORYPerfectly paired with Tumbler 40 oz with Handle, Simple and Modern 40 oz Tumbler with Handle and Travel Tumbler 40 oz. Even when wearing a hydration pack, the water bottle can be easily placed in the car cup holder.2 Large PocketsThe large zipper pocket measures 7.5 x 3.5 inches, suitable for all sizes of cell phones on the market. The small zippered pocket measures 4.3 x 3.5 inches and holds cards and other essentials. Zipper design prevents your personal belongings from being lost. Eliminate the hassle of carrying extra luggage on hikes, bike rides, runs, gym workouts and more.Bonus Straw CoverThe extra straw cover is made of food-grade silicone to keep straws and drinks clean.Adjustable Shoulder StrapThe water bottle holder comes with an adjustable and detachable shoulder strap with an adjustment range of 24-48 inches to fit most people's body types. Adjust the shoulder strap to its shortest length and use it as a handle.Protect & Enhance Your GlassThe water bottle bag prevents scratches and dents on your glass and enhances insulation whether hot or cold.