Oxygen is an essential gas in human life activities, also known as an essential element and we cannot leave oxygen.Our portable oxygen bag can meet your need to carry it anytime, anywhere,For example, if you want to climb to the top of a mountain, but you also have altitude reactions that lead to hypoxia, the importance of oxygen packs becomes particularly apparent.And our oxygen bag made of high-quality Oxford cloth, which is tear resistant, wear-resistant, waterproof and dustproof.In addition,Our oxygen bag not only is enough room for accommodation but also oxygen bag strap is long enough for you to adjust to your most comfortable.Our oxygen backpack have been upgraded based on customer feedback, such as two-way zippers and so on. Made of high-grade and durable nylon material,so you can use it for long time. Our oxygen bag with external larger pockets,it has abundant space to put your wallet, cellphone,and other small items inside. With 6 holes outlet for the oxygen line to come out, wherever it's most convenient for the use.If you are interested in our products andwant to join the buybox to purchase, our products will not disappoint you. We wish you have a wonderful day!