Spiral Hat

I made this hat on a whim using Red Heart Supersaver Light Blue and Grey Heather.  I had come across the pattern on a science day protest website and decided I liked it.  I used an I hook and had to add an extra 4 rows to cover my ears.  

I am a sucker for swirls and science

Just a regular hat from the side.

Another view of the top and bottom edge

Modeling.