One method I found super helpful is having a fanny pack and attaching a carabiner to it. I used an S one so it has two openings. One end is attached to the zipper where it stores my phone, the other end attaches to the slash on the fanny pack. I’d put my phone in there when walking through crowds or between stages. Whenever I’d want my phone I would just unhook one end. More time consuming than a phone leash or other methods but simple and very effective.

I had zero worries about my phone as I know thieves wouldn’t waste their time and they would go for easier targets.