Backpack for your Inogen one G4, Inogen Rove 4, or OxyGo Fit unit. Do you want a bag that offers room for your extra battery, charging cords, id, credit cards, small wallet, and more? Well, you have found it! The new Inogen One G4 carry bag offers adjustable straps, two side pockets provide enough room for such items as keys, wallet, extra battery, single or double & more! One side pocket has a magnetic flap with a drawstring so you can be sure nothing will ever fall out. This newest design has venting on the front, back and side pockets, your unit will stay cool & so will you! The zippered bottom is great for easily changing your battery, and the front grommet lines up nicely so you can charge your unit inside the bag. This backpack will fit the Inogen one G4, Inogen Rove 4 or the oxygo fit unit with a double or standard battery. You can also fit a second battery in one of the side pockets. Made and manufactured by o2totes, oxygen bag manufacturers for 15 years.