I don’t have a bike vest. I only used one when I was doing my cycle training last year when it was compulsory along with a helmet. I do have a florescent sash/belt that I wear when I am wearing my black coat while cycling. I generally rely on colour or the outfit to ensure I am seen. My light coloured rain coat is beginning to wear out, so I went to look for another one, same colour but I was swayed by a vivid purple one instead. It does the job, I got noticed in traffic.