SpongeBob Grandma of the Birthday Boy T-Shirt Fun Party Apparel
SpongeBob Grandma of the Birthday Boy T-Shirt Fun Party Apparel
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.
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Product Detail
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
🎉 **Celebrate in Style with the Mademark x SpongeBob SquarePants - Grandma of the Birthday Boy Theme Party T-Shirt!** 🎉
📅 **Perfect for Special Occasions:** Get ready to make birthday celebrations unforgettable with this fun and festive t-shirt featuring the iconic SpongeBob SquarePants. Designed specifically for grandmas, this shirt is the ideal apparel for all the loving grandmothers out there celebrating their birthday boy!
👕 **Comfort Meets Fun:** Crafted from high-quality materials, this shirt guarantees comfort and durability for all-day wear. The lightweight fabric keeps you cool and relaxed, making it perfect for a party atmosphere or casual outings.
🎨 **Vibrant Design:** With an eye-catching graphic that showcases SpongeBob SquarePants in a playful and celebratory mood, this shirt brings joy and laughter to any birthday event. The vibrant colors ensure you stand out in style, making you the star of the party!
🌈 **Casual Style:** The unisex fit offers versatility, making it suitable for all body types. The classic round neckline and short sleeves provide a relaxed silhouette that pairs perfectly with jeans, shorts, or skirts.
🥳 **Gift-Ready:** Looking for the perfect gift for Grandma on her special day? This t-shirt is a delightful choice that combines fun and practicality, making her birthday celebrations even more special!
🛍️ **Make Memories:** Whether you’re hosting a birthday party, attending a family gathering, or just celebrating in style at home, the Mademark x SpongeBob SquarePants - Grandma of the Birthday Boy Theme Party T-Shirt ensures memorable moments filled with laughter and love.
👚 **Get Yours Today!** Bring a splash of excitement to your next birthday bash with this delightful SpongeBob t-shirt. Order now and let the celebrations begin! 🎈
Elevate your wardrobe with a touch of nostalgia and fun. Perfect for grandmas who are young at heart!
How to wear & care
How to wear & care
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
Materials & Craftsmanship
Materials & Craftsmanship
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 Bacoza, produced with trusted partners to ensure quality
Guarantee: 30-day return policy + responsive customer support
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
What material are the tees made from?
What material are the tees made from?
→ Our tees are printed on authentic Gildan blanks (5000 & 6400) — soft, durable cotton with eco-friendly inks that keep colors vibrant.
How do I find my right size?
How do I find my right size?
All shirts follow US unisex sizing. For a tighter fit, size down; for an oversized look, size up. See our [Size Guide] for details.
How long does shipping take?
How long does shipping take?
→ US orders usually arrive in 4–7 business days. International orders take 7–14 business days depending on location.
Do you ship internationally?
Do you ship internationally?
→ Yes, we ship worldwide. A tracking link is always provided so you can follow your order.
What if my shirt doesn’t fit?
What if my shirt doesn’t fit?
→ You can exchange unworn items within 30 days. Just contact our support team and we’ll take care of it.
What payment methods do you accept?
What payment methods do you accept?
→ We accept all major cards, PayPal, Stripe, Apple Pay, and Google Pay.