Men's Casual Fashion Funny Pi Design Printed O-Neck Cotton HoodiesLook cool during the autumn and winter by getting yourself this funny pi sweatshirt for men that is available in a number of adorable colors and sizes. The hooded top is made from a high quality combination of cotton, polyester, and spandex materials. It's a hip hop styled casual wear that is designed with full regular sleeves and an O neck. Specifications Type: Regular Thickness: STANDARD Thickness: Fleece Style: HIP HOP Style: Casual Sleeve Style: