SQDeal Hydration Bladder, 3 Liter Water Reservoir Storage Bladder Bag for All Kind of Hydration Pack, Best for Hiking Cycling Climbing Hunting Racing Biking Running (Black) ECO - FRIENDLY MATERAIL AND EASY TO CLEAN - BPA - Free and FDA approved TPU material, our water reservoir is pressure - tolerant and wear - proof, manufactured with leak proof sealing technology and high smooth interior surface, the smoothness of the liner prevents the germ and the lime from adhesion, which promotes health and easy to clean. SOFT ANTI - MICROBIAL MOUTHPIECE, NO PLASTIC SMELL / TASTE - Effortless sipping and wholesome flow with our soft and durable BPA - Free mouthpiece. The water reservoir prevents leaking with easily accessible ON / OFF valve and no plastic taste on the nozzle hose. LARGE MOUTH OPENING - Simply add ice, fill reservoir, clean, and dry your water bladder. This water reservoir comes with large opening allows for convenient access to the interior of the reservoir. INSULATED TUBE: The water reservoir with premium quality neoprene tube cover, resisting temperature changes in Hot and Cold Weathers. Thermal Tape at each end prevents insulation from Sliding and Wearing off. Quick-release Tube can be detached for easy storing. Auto - shot off valve prevents Leaking when tube is detached. ===Attention Please=== If you also want a Water Filter, you can search "B00JD3KOVK" on Amazon.