I 8 Sum Pi Tee

Nerdy Pun, Deliciously Funny

The I 8 Sum Pi Tee is the ultimate math joke you can wear. Featuring a slice of pie on the chest along with the clever equation √-1, 2³, the Σ symbol, and the π symbol, it proudly reads: “I 8 Sum Pi… and it was delicious.” The I 8 Sum Pi Tee takes geek humour and makes it stylish, punny, and absolutely wearable.

Made from soft, breathable cotton, the I 8 Sum Pi Tee is comfortable enough for study sessions, conventions, classrooms, or just casual everyday wear. Perfect for math geeks, teachers, students, and pun lovers, the I 8 Sum Pi Tee is a witty conversation starter that never fails to get a grin.

Whether you’re gifting it to your favourite nerd or adding it to your own wardrobe, the I 8 Sum Pi Tee proves math humour is timeless — and tasty. Wear it with pride, because the I 8 Sum Pi Tee is truly delicious.

• 100% cotton
• Sport Grey is 90% cotton, 10% polyester
• Ash Grey is 99% cotton, 1% polyester
• Heather colors are 50% cotton, 50% polyester
• Fabric weight: 5.0–5.3 oz/yd² (170-180 g/m²)
• Open-end yarn
• Tubular fabric
• Taped neck and shoulders
• Double seam at sleeves and bottom hem
• Blank product sourced from Honduras, Nicaragua, Haiti, Dominican Republic, Bangladesh, Mexico

Unisex T-Shirt

Unisex T-Shirt

Unisex T-Shirt

Unisex T-Shirt

Unisex T-Shirt

Unisex T-Shirt

Disclaimers: 
• Due to the fabric properties, the White color variant may appear off-white rather than bright white.
• Dark color speckles throughout the fabric are expected for the color Natural.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Age restrictions: For adults
EU Warranty: 2 years

In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

Size guide