O2totes Ultra LightWeight Backpack Fits The Inogen One G4/OxyGo Fit/Lightest Backpack for The Inogen One G4, under 10 ounces WILL ONLY FIT THE INOGEN ONE G4: IO-400, Purple, Fits: Inogen One G4

Backpack Is ONLY compatible with the Inogen One G4 or Inogen Rove 4 units. Listing is for the backpack only, does not contain o2. Please kindly check the back of your unit make sure your unit is IO-400, IS-400 or, IS-401. This backpack will NOT fit the Inogen One G5 or Inogen Rove 6. It will NOT fit any other unit even if your unit is the same dimensions. It will not fit. SMALL & LIGHTWEIGHT: Only 10 ounces, breathable mesh will surround your unit ensuring your unit & yourself stay cool. Backpack is fit for small to mid size individuals. Please check the dimensions as this backpack is small. Backpack is purple in color NO POCKETS: This backpack is free of pockets or any other storage capacity. It is small, like your unit, zippered bottom with a clear viewing top for access to your buttons and your unit. ADJUSTABLE STRAPS: Backpack straps are adjustable and double padded. Lightweight backpack for travel, errands, around the house. Included is the backpack, waist strap (attached) and a removable chest strap ACCESS TO CHARGING HOLE: The backpack has full access in the back to your charging port on your unit, ensuring you do not have to take your unit out of the backpack.