A google.co.uk for "high visibility tape" gives me this:

http://www.gaffertape.com/highvis.php

and a bunch of other possibilities.

"BigWallop" wrote in message
k...
Hi folks, anyone know where I can buy some high visibility ribbon, the
type
sewn on jackets and things. I have searched and found no where that
supplies just the ribbon, only the jackets, vests and things.

Thanks in advance for your help on this one.