Cool neopreme belt that has 2 zipper pockets able to hold your phone or key. Pretty comfortable and stays up well when you are walking. I dont run so i didnt try that long enough to report back my feelings on that. This is not adjustable so make sure to measure your waist and look at the size chart so you dont get one to big or to small.
https://www.amazon.com/JenniWears-Running-iPhone7-Fitness-Workout/dp/B075V42TGZ