Features: The Proof is in the Filter: PP cotton removes small materials such as various unwanted grains. Activated carbon helps clean all kinds of dirt and improve the taste of the water. Ultralight for any adventure: Lightweight and portable camping accessories that fits in your hands, pocket, bag and serves as hiking gear. It is ideal for hiking, camping and traveling. Always be prepared for emergency supplies, pack a rescue straw in your survival kit and your emergency kit will help you reduce anxiety, worry and loss in case of water shortages and other emergency situations Easy To Use: Get down close to the stream or lake and use it to drink straight from the source, or fill your water bottle and insert the filter to start sipping. Advanced And Safe Technology: Outdoor Personal water filter removing 99.9999% of the tiny material, cysts, particulates, sediments. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Filtration Capacity: 1500L Material: ABS + PP Cotton Size: 21.5 x 3.3cm Package List: 1x Outdoor Water Filter Straw or 1 x Outdoor Water Filter Straw Set