o2Totes Backpack compatible ONLY with Inogen One G4 (I0-400) & Inogen Rove 4 (IS-400) Ultra light backpack, Double or Single

Fits my Inogen Rove 4 perfectly. Very lightweight with comfortable shoulder straps. Quality construction.

Good design, well made, quality work, durable and easy to use.

This is a very nice backpack for the Inogen G4. The unit fits nicely with the 4 hour battery installed. It is lightweight and my wife says comfortable to wear. So why not a 5 star? Well, the first one we got had obvious quality control issues with the strap barely sewn in place. The good news is O2Totes promptly sent us a no charge replacement when we sent pictures and brought it to their attention. SO, 5 stars for customer service, 4 stars for a pretty good product and if I could give 1/2s, I'd do it and give it 4.5

Inconspicuous carrier for you O2. Looks like ordinary travel gear. Easy to use. Adjustable straps for good fit

It does the job of carrying the Inogen Rove, but seems very expensive for such a little bag

Perfect, better than the ones from Inogen! Lightweight, has hole for o2 and to charge. Comfortable backpack

I am still trying to find a way to make this comfortable. I am just over 5'3", and in order to get it high enough on my back, it cuts under my armpits. I should have returned it when I was able to do so.

Got this bag for my Inogen G4. Machine fits perfectly, has chest & belly straps which I don't use for the intended purpose. I may on vacation. I kind of worked the belly strap into the clasp strap for the top piece & use it with a carabiner to secure the machine to the handrails in the disability friendly bathrooms. Could work if I had a mobility chair as well. I had to cut into the plastic top a bit because it was not far enough out for my hose-but literally 1/2 inch. I carry it as a sling or backpack. The velcro hose holder got used up-but I used some velcro cord holders to replace it-works well, but messy. A small buckle strap would suffice & I may add one in the future. The stitching quality is good, I didn't need pockets, or anything fancy. I needed this for work & minimal was paramount because of job restrictions. If there was a con-it's that the back vents rest against the body & block them causing the machine to randomly stop. I cut a piece of pool noodle lengthwise & inserted in bag to rest against my back & pull the machine away from my clothing. A "bump" in the back cushion could help solve this. You can leave the bag on for charging-I have a car charger, so this is awesome! Battery changes are super easy-no disconnecting tubing or anything. I've taken it fishing, use in my checkstand as a cashier. REALLY expands my freedom. I have been touting this bag to customers since I got it. Love the lavender color, makes my o2 so much cuter. I will buy another one when I have to move up in machine size.