Ran a HM today (matched my PB - pleased considering it was bloody hot) and ruined a new vest with safety pin holes.
My vests are usually thicker than the one I wore today so don't usually notice it as much... but kind of annoyed as it looks atrocious now and cost me the best part of £18.
Not keen on repeating this... and with the amount I race, I'm looking for a new solution.
Has anyone used magnets to attach their number before? If so, where did you get them and how effective were they?