Surely you just need pockets with zips or put them in a bag.
Till they get ripped, or the zip fails, or you forget to zip your pockets up(which I do often) . If I'm riding with my bum bag, I'll clip them on but at bike parks/when the cars at the bottom of the hill I'll quite often ride without a pack.


Still looks like you had a good time though. That rock section on Black Powder isn't so bad tbh, just go straight down the middle and off the little drop. Looks worse at that top than it actually is