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Pi Day and Birthday Adult T-Shirt Design by TOOLOUD

Celebrate the magic of Pi (π) and your birthday with this stylish and geeky Pi Day and Birthday Adult Unisex T-Shirt by TOOLOUD! Whether you're a math enthusiast, teacher, student, or simply love a clever design, this shirt is the perfect way to showcase your love for numbers and fun celebrations.

Key Features:

  • Unique & Nerdy Design: Features the iconic Pi (π) symbol combined with a birthday theme for a smart, witty look.
  • Soft & Comfortable Fabric: Made from high-quality, breathable material, perfect for all-day wear.
  • Unisex Fit: A classic, relaxed fit that suits everyone—men, women, and non-binary math lovers alike.
  • Durable & Vibrant Print: High-quality graphic that won't fade or crack, even after multiple washes.
  • Great for Any Occasion: Ideal for Pi Day (March 14th), birthdays, math clubs, school events, or everyday nerdy fashion.

Make a statement with this clever, math-inspired T-shirt—because nothing says celebration like π! 🎉🥧

The unisex soft-style t-shirt puts a new spin on casual comfort. Made from very soft materials, this tee is 100% cotton for solid colors. Heather colors and sports grey include polyester. The shoulders have twill tape for improved durability. There are no side seams. The collar is made with ribbed knitting to prevent curling damage.

.: Made with 100% ring-spun cotton, a lightweight fabric (4.5 oz/yd² (153 g/m²)), this unisex t-shirt feels like a bliss to wear all year round.
.: The classic fit with the crew neckline deliver a clean, versatile style that can match any occasion, whether it's formal or semi-formal.
.: All shirts feature a pearlized, tear-away label for total wearing comfort.
.: Fabric blends: Heather colors - 35% ring-spun cotton, 65% polyester; Sport Grey and Antique colors - 90% cotton, 10% polyester, Graphite Heather - 50% ring-spun cotton, 50% polyester

  XS S M L XL 2XL 3XL 4XL 5XL
Width, in 16.00 18.00 20.00 22.00 24.00 26.00 28.00 30.00 32.00
Length, in 27.00 28.00 29.00 30.00 31.00 32.00 33.00 34.00 35.00
Sleeve length, in 7.99 8.23 8.50 8.74 9.02 9.25 9.49 9.72 9.96
Size tolerance, in 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50

 

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