Primary Shapes Bike Helmet reflective A mathematically delightful helmet featuring

A mathematically delightful helmet featuring a gray background and black shapes filled in at randomized intersections (kind of the two-color map theorem)

A stylish leopard print ski and snowboarding helmet that will protect you

Have mad style on the streets

Send us a picture of your head and we'll try our best to copy it onto a helmet

Originally designed in 1988 by Gina Ekiss for the Sweethart Cup Company (later to become the Solo Cup Company)

Primary Shapes Bike Helmet reflective A mathematically delightful helmet featuringBe cool on your bicycle with this funky retro inspired design with tiny randomized triangles, squares, and circles in primary colors on a navy blue background. This helmet is hand painted with acrylics and individually vinyl printed in our studio. It's also coated with a UV protected varnish, making its surface scratch and water resistant. Each helmet comes with adjustable foam padding for the perfect fit. The S M fits head circumferences 21" 22. 75"