Oxygen Concentrator Backpack. Fit For: Inogen One G3/OxyGo, Inogen One G5/OxyGo Next, & Rhythm P2

Thus POC backpack is what is needed for mobility with two hands free.. It distributes the weight of the POC evenly and it is secure by straps. The original POC container would move around when one is bending over or the strap would cut into the shoulder area. Backpack distribute the weight evenly!

Much better than shoulder bag

This is my everyday bag, durable and holds a total on two double batteries (one in use, one spare) with a G3 all at the same time. Minus one star is for not having enough other pockets for me and my junk, and the bottom compartment is not rigid and if you have something oddly shaped in it, the bag will fall over, and the charge port on the G3 is not accessible without opening the zipper. All are not deal breakers for me. Otherwise a great bag.

Great item. It was just what I needed!