STRICT COMPATIBILITY- FITS ONLY SPECIFIC MODELS: This backpack is custom-engineered ONLY for the Rhythm Healthcare P2, P2-E6, P2-E7, and the React Health POC2000. WILL NOT fit the Rhythm P2-S4. It will NOT FIT any other unit, it will NOT FIT any Inogen units. Check your model number and unit dimensions (Height: 6.3 x Width 8.7 x depth 3.4 inches) before ordering to ensure you have the correct unit for this backpack. THIS DOES NOT COME WITH A UNIT, BACKPACK ONLY Ergonomic Comfort & Stability: Designed for all-day wear, featuring, padded shoulder straps plus integrated chest and waist stabilization straps. These adjustable straps distribute weight evenly across your torso, significantly reducing back strain and preventing the bag from shifting while you move. Smart 3-Pocket Organization: Stay organized with dedicated storage for your medical and personal essentials. Includes a large front pocket for your phone or wallet and a removable bottom compartment designed specifically for easy access to extra batteries, charging cables, and cannulas. Integrated Access Ports & Side Cannula Exit: Designed for ultimate convenience, this protective carrier features a precision-sewn access hole, allowing you to plug in your charging cord without ever removing the unit. Additionally, a dedicated side-exit port ensures your cannula tubing remains non-kinked and tangle-free, maintaining a consistent flow while keeping your device securely tucked away. Discreet, Hands-Free Independence: Regain your mobility with a sleek, low-profile design that looks like a standard high-end daypack. Whether you are traveling, running errands, or exercising, this durable nylon backpack provides a secure, hands-free way to carry your oxygen with confidence. Introducing the O2Totes fit for Rhythm Healthcare P2 POC Backpack that also fits the React Health POC2000 (these units are the same size, shape and function, just different names), a fusion of functionality and comfort designed specifically for your (POC). Whether you're navigating daily routines or embarking on adventures, this backpack ensures your POC stays secure and accessible at all times. Crafted with durable materials, the o2totes Rhythm Healthcare P2 Backpack features comfortable straps that distribute weight evenly, reducing strain during extended wear. Its thoughtful design includes multiple compartments tailored to accommodate essentials such as charging cords, wallet, and phone, keeping your accessories organized and within reach. Equipped with a total of 3 pockets, including a removable bottom section for effortless cleaning and maintenance, this backpack offers versatility to suit your storage needs. Mesh panels surround your POC, providing ventilation to prevent overheating and ensuring optimal performance wherever you go. Whether you're commuting, traveling, or simply enjoying daily activities, the O2Totes Rhythm Healthcare P2 POC Backpack is your reliable companion, blending practicality with style to enhance your mobility with peace of mind. Discover unparalleled convenience and accessibility with every journey, thanks to this essential companion for your POCC. The backpack is the following dimensions: 8.87x 6.3 x 3.4 Will not fit any other unit but the Rhythm P2: Make sure you have the correct unit