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★★★★★
The quality exceeded my expectations! The shirt was so soft and absolutely adorable.
Sarah M.
Printed In-House
4th Birthday Girl Shirt, Sweet Four and Salty Mermaid Shirt, Mermaid Birthday Outfit, Girls 4th Birthday Tee, Under the Sea Party
🧜♀️🌊 SWEET FOUR & SALTY! 🌊🧜♀️ Four never looked this fabulous! Celebrate your little mermaid's big day with...
$25.95
Printed by our own team
Ships in 3–5 business days
Easy 30-day exchanges
- Mid-weight cotton that holds shape wash after wash
- Relaxed toddler fit — room to move, room to grow
- Printed and quality-checked by our own team
Product details
🧜♀️🌊 SWEET FOUR & SALTY! 🌊🧜♀️
Four never looked this fabulous!
Celebrate your little mermaid's big day with this colorful 4th birthday girl shirt, featuring the playful saying “Sweet Four & Salty” surrounded by tropical palms, ocean waves, seashells, starfish, hearts and an adorable mermaid.
With bright pink, coral and turquoise colors, this birthday tee was made for a girl who's equal parts sweet, sassy and ready to make waves!
🎂 PERFECT FOR A 4TH BIRTHDAY
This mermaid birthday shirt is an adorable choice for:
• 4th birthday parties
• Mermaid birthday themes
• Under-the-sea parties
• Beach birthdays
• Pool parties
• Tropical birthday themes
• Birthday photoshoots
• Cake-smash photos
• Aquarium adventures
• Fourth birthday gifts
🩷 SWEET FOUR & SALTY
The oversized FOUR makes her milestone age instantly noticeable, while the mermaid and tropical artwork gives the design a fun boutique birthday look.
Pair it with a pink tutu, denim shorts, leggings, sandals or a big birthday bow for an extra-cute birthday outfit.
🌴 MERMAID PARTY READY
Planning an under-the-sea celebration? The pink, turquoise and coral palette coordinates beautifully with mermaid balloons, seashell decorations, ocean-themed cakes and tropical party decor.
📸 MADE FOR THE BIRTHDAY PHOTOS
Whether she's holding up four fingers, opening presents, blowing out her candles or posing with her birthday crew, this shirt makes her milestone age the star of the photo.
🎁 A FUN 4TH BIRTHDAY GIFT
A cute birthday gift for daughters, granddaughters, nieces and little mermaid lovers turning four.
Perfect for the birthday girl who's officially:
FOUR. SWEET. A LITTLE SALTY. AND READY TO MAKE WAVES. 🌊🩷
Shipping and delivery
Most orders ship in 3–5 business days.
Returns & refunds
Easy 30-day exchanges on unworn items.
Printed In-House. Not Outsourced.
Our Story
Printed In-House, Made With Care
Lil Croptops started with a simple frustration: kids' graphic tees that faded after three washes, felt like cardboard, and were printed who-knows-where. So we bought a press, learned the craft, and started making them ourselves.
Printed In-House
Every garment is designed, printed, and packed in our studio. No third-party print farms.
Made With Care
We choose soft, durable cottons and test every graphic for comfort.
Small Batches
We print in small runs so designs stay fresh and waste stays low.
Printed In-House, Made With Care
Why We Print In-House.
We started Lil Croptops because we were tired of ordering cute designs online and getting prints that cracked after two washes.
So we brought printing in-house — every onesie and tee is produced and checked by our own team, not shipped out to a third party. It’s slower. It’s also the only way we’d put our name on it.
Read Our Story →
Parents Are Talking
What Families Are Saying
Real reviews from real parents. (We’ll add more as they roll in.)
4.9
Avg. rating
40+
Wash cycles tested
2–3
Day shipping
100%
Printed in-house
Common Questions
Frequently Asked
How long does shipping take? +
Orders are typically made and shipped within 2–5 business days.
Do you accept returns? +
Because each item is made to order, we do not accept returns unless an item arrives damaged or we made an error.
Can I personalize a shirt? +
Yes! Many of our designs can be personalized with names or ages.
What brands do you print on? +
We use premium, boutique-quality blanks selected for comfort and durability.Sample Brands LAT Apparel, Bella Canvas, Rabbit Skins, Gerber Premium, or other like quality premium brands.
How do I know what size to order? +
Shirts are true to size, but if you’re between sizes, we recommend sizing up.
How should I wash my shirt? +
Wash inside out in cold water and tumble dry low for the longest-lasting print.
Printed In-House
Find Their Next Favorite Tee.
Boutique graphics. In-house quality. Shipped straight to your door — usually within the week.
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Little tees, made with big care.