This sale is for a 1999 Light Wear Red Hat Society Cap by Fiber Optic Design, Inc.  This strap back hat has an embroidered fiber optics design on the front the flashes in a pattern.  It has an on/off switch and seems to work fine.  (I had trouble taking a photo of it in the dark lit up.)  It requires two 3V C2025 batteries and some used ones are included.  Fun! 

Please see the photos for more details and message me if you would like additional pictures or have any questions. 

I mail within 1 business day of receipt of payment.  I  can combine shipping for multiple items purchased and will refund any shipping costs  if the difference between calculated and actual is $1 or more. This is a  smoke-free home.  Thanks!