Klein Bottle Hats Plus

In honor of my topologist grandfather — the Klein Bottle hat. A klein bottle is “a non-orientable surface.” To you and me that means the inside and outside surfaces are continuous; you can’t tell where the one stops and the other begins. Trust me; the math nerd in your life will love it.

** For current availability, please see the Creations by Maris Etsy shop. **

%d bloggers like this: