The AirSep FreeStyle 5 Harness System helps you maximize your concentrator's portability and comfort by converting your custom carrying case into a backpack. Carrying your AirSep FreeStyle 5 like a backpack will center the weight of the concentrator over your whole body rather than have all of the weight on one shoulder, making it easier to carry your concentrator while using less energy balancing yourself. Adding to the comfortability of the harness system, AirSep padded the shoulder straps and back piece to prevent the straps or concentrator from digging into your skin while you carry it. On front of the padded shoulder straps, AirSep equipped two stability straps to prevent the unit from shifting while you are out and about—one strap across your chest and one strap around your waist. This comfortable and stable carrying solution allows you to stay active and mobile throughout your day with reduced strain and fatigue.