Zero Factorial Dad Hat with Blue Embroidery

One of mathematics’ neatest results, worn without explanation. Zero factorial, 0! = 1, follows naturally from the structure of factorials and plays an important role in combinatorics and probability.

This classic Dad Hat pairs that Expression with a low-profile chino cotton-twill construction and blue embroidery. A small NerdWear.net mark is embroidered on the back.

• 100% chino cotton twill
• Unstructured, 6-panel, low-profile construction
• Curved visor
• 6 embroidered eyelets
• 3 ⅛” (7.6 cm) crown
• Adjustable strap with antique buckle
• One size, adjustable
• Front and back embroidery

NerdWear. Wear What You Know.

Made to order: Each NerdWear hat is produced specifically for your order using a pre-designed NerdWear Expression and predetermined embroidery specifications. Because your hat is embroidered on demand rather than pulled from mass-produced warehouse inventory, fulfillment may take a few extra days before it ships. Producing only what is ordered helps reduce excess inventory, waste, and unnecessary production costs, which helps us avoid passing those added expenses on to the buyer. Each hat is still produced to the design and specifications established for that product.