The outdoor foldable water bag is made of TPU material which is free of BPA. It’s very portable and doesn’t take up too much space. Drinking water by the straw directly or take it out easily without taking your running backpack off or stopping your steps. Convenient collapsible water bottle for your outdoor sports. Easily collapsible for storage or carry after use on your next hike, camping trip or picnic. The customer logo is available. Measuring 6.5*2.4 inches, this custom food grade tpu sports water bag. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Eco-friendly material, reusable, foldable for storage.