Authentic Inogen backpack designed for the Rove 4 / G4 portable oxygen concentrator. Lightweight and breathable with ventilated mesh panels to keep equipment cool during use. Features: • Durable gray ripstop material • Multiple zip compartments for batteries & accessories • Interior mesh storage pockets • Ventilated front panel for airflow • Padded ergonomic straps + breathable back support • Hands-free mobility for oxygen therapy Compatible with Inogen Rove 4 and Inogen One G4 systems. Ideal for travel, daily wear, or active lifestyles requiring portable oxygen. Very good and clean condition with very little wear from use. See photos. Backpack sells for $120 from Inogen.