Building Our Family Baby Blocks Baby Onesie® | Cute Baby Gift
Baby & Infant Size Chart
Infant Shirt
| 6M | 12M | 18M | |
|---|---|---|---|
| Length | 12½ in | 13 in | 13½ in |
| Width | 9¾ in | 10¼ in | 10¾ in |
| Sleeve | 3¼ in | 3½ in | 3¾ in |
All measurements in inches • Measurements may vary ±1"
Short & Long-Sleeve Baby Bodysuit
| 0-3M | 3-6M | 6-9M | 12M | |
|---|---|---|---|---|
| Weight | 8–12 lbs / 3.6–5.4 kg | 12–16 lbs / 5.4–7.3 kg | 16–20 lbs / 7.3–9.1 kg | 20–24 lbs / 9.1–10.9 kg |
| Height | 21–24 in / 53.3–61 cm | 24–26 in / 61–66 cm | 26–28 in / 66–71.1 cm | 28–30 in / 71.1–76.2 cm |
on All US Orders
We offer free standard shipping on every US order — no minimum required. Your tee will be carefully packaged and on its way!
Returns
Not in love with your tee? No problem. Returns accepted within 30 days of delivery — unworn and unwashed. Learn more.
In-House Printing
Every Okum Tees shirt is printed in-house using eco-friendly inks. Quality you can feel good about — inside and out.
This design stacks hand-drawn alphabet blocks in soft sage green, spelling out BYBA alongside the heartfelt phrase 'building our family.' There's something so tender about the wobbly, hand-illustrated lines of each block, like they were sketched with a new baby in mind.
Whether this little one arrived after a long fertility journey, through adoption, surrogacy, or the beautifully ordinary way, this baby onesie® gently honors the story behind every family. It's a soft, wearable celebration of the family that was built with love.
Makes a great gift for:
- A meaningful gift for parents celebrating an IVF or fertility journey success
- Perfect for adoption or surrogacy announcements and celebrations
- A sweet baby shower or new baby gift for families of every kind
Product details:
- Material: Soft, lightweight cotton — gentle on baby skin and easy to wash
- Fit: True to size infant fit — see size guide for measurements
- Colors available: White, Grey, Natural
- Care: Machine wash cold, tumble dry low

Our ONESIES® are made from 100% cotton interlock knit, in white, natural, and heather grey. The natural fabric fits true to size, while the white tends to run slightly small. Our shirts and sweatshirts are crafted from cotton or cotton blends, depending on the brand. When in doubt, sizing up is a safe bet.
All of our items are printed using inks that meet CPSIA safety standards and are gentle on sensitive skin.
We’re proud to source our materials from manufacturers that prioritize ethical production and fair working conditions.
To learn more about CPSIA standards, visit: https://www.cpsc.gov
ONESIE® is a registered trademark of Gerber Childrenswear LLC.
