Using the Podium Flow 2 Waist Pack is easy. First, fill the 21oz Podium Dirt Series Bike Bottle with your favorite drink. Then, put the bottle into the designated holder on the waist pack. Adjust the straps to fit your waist comfortably. When you're riding and need a drink, just reach for the bottle. It's easily accessible. As for maintenance, after each use, empty the bottle and rinse it thoroughly to keep it clean. Also, wipe down the waist pack with a damp cloth. Make sure to let the bottle and the pack dry completely before storing them. Don't expose the waist pack to extreme heat or sharp objects to avoid damage.