Big Sis T-shirt
Free shipping on all orders over $80
Free personalisation
Each item is made to order by our overseas production partners, then shipped to you with tracking
You'll get a tracking link by email as soon as it's on the way.
Big Sis Est. T-Shirt – Custom Year for the Sweetest Big Sister!
Celebrate your little one’s new role with our adorable Big Sis Est. T-Shirt, personalised with a special “Est. [Year]” to mark when she officially became the best big sister ever! This sweet, timeless tee is perfect for family photos, sibling reveal announcements, or just everyday fun.
✨ Custom & Meaningful
Add the baby’s birth year for a personal touch — “Big Sis Est. 2025” makes this shirt a keepsake she’ll cherish for years to come.
👕 Soft & Comfy Fit
Made from 100% cotton (110gsm), this t-shirt offers a regular fit that’s breathable, moisture-wicking, and gentle on delicate skin. Perfect for playtime, photoshoots, or matching sibling outfits.
📸 Perfect for Sibling Reveals & Photos
This Big Sis shirt is ideal for pregnancy announcements, gender reveals, or baby showers — a sweet addition to family memories.
🧺 Easy to Care For
Hand wash or machine wash — avoid soaking too long or bleaching. For best results, wash with mild detergent below 45ºC.
🎁 A Thoughtful Keepsake Gift
This personalised Big Sis Est. T-Shirt is a wonderful gift for big sister-to-be. Great for birthdays, baby showers, or welcoming a new sibling!
Complete the look:
Need help?
Got a question about personalisation, sizing, or shipping? We're here to help — drop us an email at hello@thecustomco.com.au and we'll get back to you as soon as we can.