I have several helmets but some of the clips have disappeared and I need to get some more.
I went to Evans and On Your Bike in London, but they didn’t sell any. You would think they would have a selection as these fall off all the time and you won’t want to keep buying helmets all the time.
I think some kind of shop that sells bags may give me some advice. I may just google them to see if I come across any clips. It tis a bit of a nuisance.