The number known as pi(π) has fascinated people for many years. The digits to the right of its decimal point can keep going forever, and there is absolutely no pattern to these digits.

A team of researchers at Tokyo University in Japan calculated the digits of pi to 1.24 trillion places. Chances are, you'll never need to know even the first ten digits, but just for fun, the T-Shirt shows first few digits of Pi(π). Don't forget to tag us on your pictures posing with this special Hat.

Dad hats aren't just for dads. This one's got a low profile with an adjustable strap and curved visor.



• 100% chino cotton twill

• Unstructured, 6-panel, low-profile

• 3 ⅛” crown

• Adjustable strap with antique buckle

• Head circumference: 20 ½” - 21 ⅝”