RevereSport Compatible iPhone 12 Pro Max Waterproof Running Armband with Extra Pockets for Keys, Cash and Credit Cards… Price: $17.99 (as of 05/10/2022 02:08 PST- Details)

DESIGNED FOR YOUR IPHONE 12 PRO MAX : The lightweight arm band is designed to hold your iPhone 12 PRO MAX (Not Mini). Listen to music, take calls and track your fitness, without the inconvenience of removing your smartphone.
PROTECTS YOUR PHONE : The NEW advanced Lycra material has a waterproof coating, so it will block water from getting to your phone. Run in the rain or sweat hard in the gym knowing your phone is protected. (Not for Submerging/Swimming)
CARRY YOUR VALUABLES : Train anytime, anywhere. The extra bright reflector strip gives you high visibility when running at night. The new Larger key pocket is perfect for keeping your house key and car key / fob secure. There is also a handy pocket perfect for carrying Cash, Credit Cards and ID.