Safe material: high quality BPA-free food grade PE plastic, environmental protection and safety, long-term storage of drinking water, replacement of conventional water bags or water tanks that do not affect water quality design for easy storage. Easy to use: just place it under the tap, fill it with water and let the tank "grow" at its maximum size. The applicable temperature is -20C to +80C, foldable, suitable for storage water storage. The water outlet can adjust the amount of water, which is very convenient to use. Widely Applicable: Our collapsible drinking water tank is versatile and ideal for use in , hiking, climbing, traveling, outdoors and long car trips. 3 sizes to choose from: Our collapsible water tank has three sizes, you can choose according to your your needs. The color is transparent and the capacity is 5L/10L/15L, 120g/220g/290g, 5L: 24cm*22cm, 10L: 28cm*25cm, 15L: 31cm*28cm. Easy to carry : Small, lightweight and foldable design. It can be folded when not applicable, saving space. Ideal for outdoor activities such as fishing, boating, hiking, hiking, climbing, hunting. Product Description Features: 1. Made of high quality food grade PE plastic, BPA free, safe and non-toxic. With special processing technology, no pollution. 2. It is suitable for cars in outdoor camps away from the water source. Especially suitable for outdoor sports such as cycling, mountaineering, hiking, etc. 3. Packable and foldable design, it can save space, it is light and easy to carry, the working temperature is between -20C and 80C. 4. Foldable design, suitable for water storage. The water outlet can adjust the amount of water, which is very convenient to use. Product parameters: Material: food grade PE Transparent color Straw size: 1cm Suitable temperature: -20C - 80C. Shipping list: 1 * collapsible water tank