Using this Garmin backpack tether is easy. First, find a strap on your backpack that's up to 3.75 inches wide. Wrap the durable nylon harness around it and use the hook - and - loop attachment to secure it. Then, if you have a compatible Garmin device, use the hook - and - loop material to stow it. This will give you the best GPS performance. If you need to use the device, just detach it from the hook - and - loop. The adjustable spine mount and lanyard cord will keep it close to you. When using it with the inReach® Mini 2 device, remember to attach the additional Spine Mount Adapter. For maintenance, keep the tether clean and dry. If the hook - and - loop material gets dirty, you can gently clean it with a soft brush. Check the lanyard cord regularly for any signs of wear and tear.