This cute hat features our Birdorable Pigeon with the symbol for Pi. This will make a great gift for mathematicians and bird lovers.
About this Hat
Cover your head with this original hat or give one to your favorite trucker. Available in 11 colors. Made with a 100% polyester foam front and a 100% nylon mesh back keeps you cool. Adjustable from 17 to 24 inches.
Bird in this design