BPA Free & SafeOur hydration bladder is made of BPA-free and safe EVA material to keep your water clean and free from harmful chemicals. This makes it a reliable and trustworthy option for carrying water and other beverages. EVA material is not only safe, but also durable and tough, providing a reliable solution for your hydration needs. ‍Leak-proof water pipeThe length of the water bladder water pipe is 104cm, and the leak-proof design ensures that your items stay dry. It is equipped with an easy-to-use switch valve. Pull the valve up and bite the nozzle to suck water. Push it down to close the valve. The water pipes also come with dust caps. This hydration pack is a must-have for outdoor enthusiasts. ‍Large Capacity & Wide OpeningThe water reservoir has a large capacity of 2L, allowing you to carry enough water to keep you hydrated throughout your activity. The wide opening of the water reservoir ensures hassle-free hydration. Not only is it convenient for you to replenish ice cubes at anytime, but it is also convenient to clean the water bag and keep the water bag hygienic. High and low temperature resistantThe hydration bladder is designed to withstand extreme temperatures, the minimum and maximum temperatures that our waterproof bladder can withstand are: -20C to 50C respectively, and can be used in hot and hot weather. In cold weather, stay hydrated and comfortable throughout your outdoor adventures with a hydration pack. Wide ApplicationThe water bladder is compatible with most backpacks and hydration packs, making it easy to integrate into your gear setup. Keeps you hydrated while hiking, camping, biking, running, mountaineering, biking, skiing and other activities.