A snug, form-fitting beanie embroidered with a Butterfly fractal in white and grey thread.
The butterfly effect is a concept that states that "small causes can have larger effects". In particular, the Edward Lorenz attractor is a set of chaotic solutions of the Lorenz system which, when plotted, resemble a butterfly or figure eight.
It's not only a great head-warming piece but a staple accessory in anyone's wardrobe.
