SpongeBob Birthday T-Shirt for 11 Year Olds Fun Party Apparel

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 SpongeBob SquarePants - SpongeBob "I Am 11 Years Old" Birthday Party T-Shirt 🎂**

Celebrate your child's special day with a splash of fun and color! The Mademark x SpongeBob SquarePants "I Am 11 Years Old" Birthday Party T-Shirt is the perfect outfit for your little one's birthday celebration.

👕 **Product Features:**
- **Vibrant Design:** This eye-catching t-shirt showcases the beloved character SpongeBob SquarePants, complete with a cheerful expression and the fun tagline "I Am 11 Years Old," making it an ideal addition to any birthday party outfit.
- **Quality Material:** Made from soft, breathable fabric, this shirt ensures all-day comfort for your child, allowing them to enjoy their special day without any discomfort.
- **Perfect Fit:** Available in a range of sizes, this t-shirt is designed to provide a great fit for kids aged 11, making it a versatile choice for growing kids.
- **Versatile Style:** The bright yellow color reflects SpongeBob’s vibrant personality, making it easy to pair with shorts, jeans, or even festive party skirts for a complete birthday look.

🎈 **Why Choose This T-Shirt?**
- **Great for Party Themes:** Whether it's a SpongeBob-themed birthday bash or a casual get-together with friends, this shirt is sure to be a hit!
- **Memorable Keepsake:** Capture the fun of turning 11 with this stylish tee, perfect for photos and lasting memories.

🌟 **Care Instructions:**
- Machine washable for easy clean-up after the party, ensuring the shirt stays vibrant wash after wash!

Give your child the gift of fun and style for their birthday! This Mademark x SpongeBob SquarePants "I Am 11 Years Old" Birthday Party T-Shirt is not just clothing; it’s a celebration of joy and friendship that will make their day unforgettable. Order yours today!

Perfect for daily wear, streetwear outfits, parties, or casual hangouts.
Pair it with jeans, shorts, or layer it with a jacket for an effortless look.
To keep your tee looking fresh:

• Machine wash cold, inside-out
• Use mild detergent (no bleach)
• Tumble dry low or hang dry
• Do not iron directly on the print

Fabric: 100% ring-spun cotton (soft-touch, breathable, durable)
Print: DTG eco-friendly inks (non-toxic, safe for skin, long-lasting colors)
Fit: Unisex, US standard sizing (check our [Size Guide])
Origin: Designed in-house by Owlivo, produced with trusted partners to ensure quality
Guarantee: 30-day return policy + responsive customer support