Skip to content
PRINTED IN THE USA – FAST DELIVERY
FREE SHIPPING ON ALL ORDERS $50+
TRENDING NOW: HALLOWEEN & CHRISTMAS TEES
Save 29%

Mademark Teenage Mutant Ninja Turtles Cowabunga I'm 5 Years Old T-Shirt

Mademark Teenage Mutant Ninja Turtles Cowabunga I'm 5 Years Old T-Shirt

Regular price $18.95
Sale price $18.95 Regular price $26.95

Find your perfect fit – all sizes are US standard unisex measurements.

📏 T-Shirt Measurements (in inches)

Size Chest Width Body Length Sleeve Length
XS 16.5” 27” 8”
S 18” 28” 8.25”
M 20” 29” 8.5”
L 22” 30” 9”
XL 24” 31” 9.25”
2XL 26” 32” 9.5”
3XL 28” 33” 9.75”

📝 How to Measure

  • Chest Width: Lay your favorite tee flat. Measure 1" below armpit, across chest from seam to seam.
  • Body Length: Measure from the highest point of shoulder to bottom hem.
  • Sleeve Length: Measure from shoulder seam to end of sleeve.

💡 Sizing Tips

  • All shirts are unisex – for a more fitted look, size down; for oversized style, size up.
  • If you’re between two sizes, we recommend choosing the larger one for comfort.
  • Our tees are pre-shrunk but may shrink up to 5% after first wash.
  • Orders over $50 ship free
  • 30 day returns

Product Detail

Our tees are crafted with premium 100% cotton (180–200gsm), designed to be soft, breathable, and durable.
Every print is created using eco-friendly, high-definition inks that stay vibrant wash after wash.

  • Unisex fit (true to US size)
  • Pre-shrunk for minimal shrinkage
  • Ethically produced & shipped worldwide

### Mademark x Teenage Mutant Ninja Turtles - Cowabunga I'm 5 Years Old T-Shirt

🌟 **Celebrate a Milestone in Style!** 🌟
Get ready to party with the Mademark x Teenage Mutant Ninja Turtles "Cowabunga I'm 5 Years Old" T-Shirt! Perfectly designed for young fans of the iconic TMNT series, this vibrant t-shirt is the ultimate way to celebrate turning five in an epic way.

👕 **Fun Design**:
This colorful t-shirt features a playful graphic showcasing the beloved Teenage Mutant Ninja Turtles, along with the fun slogan "Cowabunga I'm 5 Years Old." Whether it's a birthday celebration or just a fun day out, your little one will feel like a true hero in this stylish shirt.

🎨 **Vibrant Colors**:
Crafted in eye-catching shades, this t-shirt combines shades of green, orange, and blue, ensuring your child stands out in any crowd. The high-quality print makes sure the design stays bright and cheerful, even after multiple washes.

💎 **Comfort Meets Style**:
Made from soft, breathable fabric, this t-shirt is gentle on delicate skin while providing all-day comfort. It’s perfect for active play, birthday parties, or just lounging around at home.

🧩 **Perfect Fit for Every Adventure**:
Available in various sizes, this t-shirt is tailored to fit children aged 5 years old, ensuring a comfortable and stylish fit for every ninja turtle fan.

🎉 **Great Gift Idea**:
Looking for a birthday gift that will bring a smile? This t-shirt makes an awesome gift for TMNT lovers, guaranteeing birthday joy and fun memories.

🔒 **Easy Care**:
Machine washable and durable, this t-shirt is designed for busy parents and energetic kids, making laundry day a breeze.

Give your young hero the gift of adventure and style with the Mademark x Teenage Mutant Ninja Turtles "Cowabunga I'm 5 Years Old" T-Shirt! A must-have addition to any young fan’s wardrobe!

Premium Comfort

Soft cotton tees you’ll want to wear every day.

Meaningful Designs

From pets to art to humor, find a tee that tells your story.

Perfect for Gifting

Thoughtful, unique, and sure to bring a smile.

Trusted Worldwide

Thousands of orders shipped with care.

Questions check here

Not Just Tees — It’s Your Story
Premium Cotton Comfort — Bold Graphic Designs.
US Standard Fit — Worldwide Shipping
Express Yourself — Wear Your Vibe.
Thousands of Happy Customers — Join the Bacoza Family