Classic Tee
Kid's Size Chart
Mermaid Big Sister Shirt 2026 or 2027
Mermaid Big Sister Shirt 2026 or 2027
Kid's Size Chart

Mermaid Big Sister Shirt 2026 or 2027

$35.00
$35.00
0 units sold · 0 people bought this
Please hurry! Only 1000 left in stock

100% Cotton

Printed in Australia

Buy 2 and get 15% OFF

Free Shipping on orders $75 +

Big Brother, Big Sister & Big Cousin Collection — Ships Free

Expected Delivery: Standard 5-12 days and express: 3-6 days

Description  

The Most Magical Way for Your Little Mermaid to Announce Her Big Sibling Promotion!

Make a splash with your big family news! Our Mermaid Big Sister Shirt 2026 or 2027  is an enchanting, whimsical way for your little girl to announce that she is stepping into her most magical role yet. Perfect for under-the-sea themed pregnancy announcements, casual birthday gift reveals, matching sibling photoshoots, or a special everyday shirt that makes your oldest feel like royalty as she waits for her new little sidekick.

This design features a stunning, hand-painted watercolor illustration of a shimmering mermaid tail splashing out of gentle purple ocean waves. The tail is adorned with detailed scales fading from ocean teal to soft pastel pink, matching the elegant, cursive script text that reads "Big Sister 2027". Complete with a tiny watercolor starfish accent, this high-contrast design pops beautifully against a clean white background, making it incredibly photogenic for social media reveals and family keepsakes.

Why She’ll Love It:

  • Magical Watercolor Art: The highly detailed, iridescent mermaid tail and wave illustration bring a premium, boutique-quality aesthetic to her milestone photos.

  • Vibrant Pastel Palette: A gorgeous combination of ocean teal, soft pinks, and rich purples creates a colorful, child-friendly design that girls absolutely adore.

  • Premium Kid-Approved Comfort: Crafted from ultra-soft, breathable 100% ring-spun combed cotton fabric that keeps toddlers and kids completely comfy all day long.

  • Built for Everyday Adventures: Features a robust, double-stitched crew neck and a relaxed retail fit engineered to handle playground play and family photos with ease.

Product Details & Specifications:

  • Design: Big Sister Watercolor Mermaid Tail 2027 Edition

  • Material: 100% Premium Ring-Spun Cotton

  • Color Available:  White

  • Sizes Available: Kids Sizes 2 to 16

  • Style: Short-Sleeve Crew Neck T-Shirt

Our Sizing and Shipping Info

Comfort Colors versus Classic tee

Comfort Color Tees: 

Heavyweight • Premium Relaxed Fit with a roomier, laid-back silhouette. You can size up for an oversized look.
• Vintage washed feel 

Classic tees:

Soft • Midweight • Regular fit and has a different size chart than Comfort Colors. 
It has a closer-to-the-body shape.

Please check description and size guide.

The Model on the right photo wears an XL in Comfort Colors. The same model on the Left photo wears her usual size in Medium. She is 5'6 tall

See image below for our Comfort Colors comparison between sizes.

Our shirts are either regular or relaxed fit. If you prefer an oversized look, please consider sizing up 1-2 sizes. For an accurate measurement, please refer to our size chart.

 

Express Orders are received and processed the same as Standard Post orders, there is no priority given (ie, top of the queue). The only difference is the delivery method.

Big Brother, Big Sister & Big Cousin Collection — Ships Free (standard shipping)

Free standard shipping on orders over $75 on all other products.

Processing times:

Our shirts are made to order which means we print them when an order is placed. Our usual processing time is 3-7 days. This does not include the shipping times. We are located in the Wollongong area in New South Wales.

Standard Shipping via Australia Post:

Shipping & Delivery Estimates

2-4 business days to most metro areas in Australia
3-6 business days to non-metro areas in Australia

Sweatshirts (crewnecks & hoodies) and designs with double-sided prints may add a further 2-3 business days to the production time.

Express Delivery

Shipping & Delivery Estimates

1-2 business days to most metro areas in Australia
2-4 business days to non-metro areas in Australia

Sweatshirts (crewnecks & hoodies) and designs with double-sided prints may add a further 2-3 business days to the production time

Reliable, Tracked Shipping

Includes tracking on all parcels. 


International Delivery Estimates

2-4 weeks to major partners (USA, UK, Canada and New Zealand)
2-6 weeks to most other countries

 

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