Quote Originally Posted by alwaysinjured View Post
Another valid option depending on resources.
The advantage of a printed number/ barcode is they could be made cheap disposable, and irremovable other than cutting off, RFId are more expensive?

Perhaps worth trialling?

The takeaway is leave the method to organisers...depending on race and conditions.
I gather SHRA have used numbered wristbands.
It's once again blatantly obvious that you have never ever in your life organised a fell race. I've been at one today talking to runners and organisers alike who live in the real world of fell running and their thoughts and comments are far removed from the kind of mindset you seem to have.