Keeping valuables safe in a festival crowd
Launch library · evergreen read

Large, dense crowds create genuine opportunity for opportunistic theft, not because festival crowds are unusually dishonest but simply because distraction and close physical contact make it easier for something to go missing without anyone immediately noticing in the moment amid the noise, music and general excitement all around.
Keeping valuables in a secure, zipped pocket close to the body, rather than an easily accessible outer pocket or a loose bag, removes much of this everyday risk without requiring constant vigilance throughout a long day spent moving between stages, food stalls and crowded viewing areas near the front.
Leaving genuinely unnecessary valuables at home or securely locked in accommodation, rather than carrying them to the festival site at all, is the simplest and most reliable protection available. What is never brought along in the first place can never realistically be lost, damaged or stolen during a busy, crowded day. A few minutes of preparation before leaving accommodation is far easier than dealing with a genuine loss later.