A very useful and necessary item for outdoors activities.It is foldable and can save space when not use.Suitable for outdoors riding, climbing, hunting and etc use.This hydration bladder uses food grade anti-bacteria material. Thick Non-toxic EVA water bag material is pressure & wear resistant.This is most popular design for high-end hydration bladders. The opening is well sealed and leak proof. easy to carry. This water bottle is collapsible, flexible and reusable. Clip it on, add to your purse, backpack or any type of bag. Add your logo on this item to make it a great gift to your customer. More information, please send your detailed request for quotation. Measuring 10.2*5.11 inches, this custom portable water bag 16oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Eco-friendly material, reusable, foldable for storage.