
Promo available
believes in science (onesie)
10% off for orders over $250.00 for everyone. Promotion auto-applied on checkout.
A onesie for all babies (and their parents) who believe in science.
Toddler tee version found here.
10% of all proceeds will go to Girls Who Code.
More details
- 100% ring-spun combed cotton
- Heather colors are 52% ring-spun combed cotton and 48% polyester
- Lightweight fabric: 3.9 oz/y² (132.2 g/m²)
- Regular fit
EU GPSR Product Information:
- Manufacturer contact information
- Name: Paging Dr. Fran
- Email: fhaydanek-shop@support.fourthwall.com
- Postal address: PO Box 5696 Santa Monica, CA 90405
- Additional information: This product is made for children. Meets the Sharp Points, Sharp Edges and Small Parts requirements, and lead, cadmium, phthalates, formaldehyde, bisphenols, azo dyes, Alkylphenols (APs) and Alkylphenol, Ethoxylates (APEOs), extractable heavy metals, fluorine, and forbidden and disperse dyes level requirements. 2 year warranty in EEA and UK, established by Directive 1999/44/EC.
Size & Fit
Quality Guarantee & Returns
- Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
- Because the products are made to order, we do not accept general returns or sizing-related returns.
believes in science (onesie) Size Guide

Size label | Length | Width | Fits weight (lbs) |
---|---|---|---|
3-6m
|
20
|
9
|
12
|
6-12m
|
25
|
9
|
16
|
12-18m
|
28
|
10
|
22
|
18-24m
|
30
|
10
|
27
|