You have the flexibility to wear your FreeStyle Comfort Portable Oxygen Concentrator either with the Carrying Bag or without it, depending on your preference. To use it with the Carrying Bag, simply attach the Shoulder Strap to the bag itself. Alternatively, you can also attach the strap directly to the metal tabs that are conveniently located on the top of the device, allowing for easy access and comfort. This versatile carry strap gives you the freedom to choose how you want to transport your concentrator based on your daily activities and personal comfort needs. Whether attached to the bag for full protection or directly to the device for a minimalist approach, the strap provides a comfortable and convenient carrying solution.