Size Guide

At Goo & Co. our baby rompers, onesies, jumpsuits, and accessories are sized by approximate age for easy shopping. Babies grow at different rates, so we recommend checking your little one's current height/weight and measuring if possible. Our pieces often have a relaxed, comfy fit with room for growth—many styles are designed with adjustable straps.

General Baby Clothing Size Chart

Size Label	Approx. Age	Approx. Weight (kg)	Approx. Height (cm)	Notes / Best For
Newborn / 0000	Up to 1 month	Up to 4 kg	Up to 56 cm	Tiny newborns; preemie fits if small
0-3 months / 000	0-3 months	4-6 kg	56-62 cm	Most common newborn size
3-6 months / 00	3-6 months	6-8 kg	62-68 cm	Growing quickly; good layering
6-12 months / 0	6-12 months	8-10 kg	68-76 cm	Sitting/crawling stage
12-18 months / 1	12-18 months	10-12 kg	76-84 cm	Toddler transition; active play
18-24 months / 2	18-24 months	12-14 kg	84-92 cm	Walking toddlers; more movement

How to Measure Your Bub:
- Height: Measure from head to heel while lying flat.
- Weight: Use a baby scale for accuracy.
- Tips: If your baby is between sizes, size up for growth spurts. Always check individual product descriptions for specific age/size recommendations.

Baby Pre-Walker Shoe Size Guide

Size Label	Approx. Age	Approx. Outsole Length (cm)	Approx. Foot Length (cm)	Best For / Notes
Size 1 / 0-6 months	0-6 months	11 cm	Up to 10.5 cm	Newborns & tiny feet; soft & flexible fit
Size 2 / 6-12 months	6-12 months	12 cm	10.5–11.5 cm	Sitting/crawling stage; most common size
Size 3 / 12-18 months	12-18 months	13 cm	11.5–12.5 cm	Early walkers; add for growth spurts
Size 4 / 18+ months	18+ months	14 cm+	12.5+ cm	Active toddlers; check individual product

How to Measure Your Bub's Feet (Quick at-home tip):
1. Place a piece of paper on a flat surface.
2. Have baby stand (or lie down for younger ones) with heel against a wall.
3. Mark the longest toe with a pencil.
4. Measure from heel mark to toe mark in cm.
5. Use the longest foot measurement. If between sizes, size up for comfort and growth.
Our Fit Notes:
- Soft soles are lightweight and non-restrictive—great for non-walkers too!
- If your baby has wider feet or is between ages, size up—our shoes have adjustable straps/laces where possible.

This guide is a general reference—actual fit can vary slightly by style. If you have questions about a specific item measurements can be found on each product page or contact us at admin@gooandco.com for a chat—we're happy to help!

Happy shopping, and enjoy those cuddly moments! 💕

Size Guide

Search

Subscribe to our mailing list