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Breathable fabric made for all-day wear
Thoughtful construction for little bodies
Easy-change snaps for real baby life
True to age. Between sizes or tall for their age? Size up.
Soft, breathable everyday comfort.
OEKO-TEX® STANDARD 100 · Product Class I
From the first photo to everything that comes after.
Simple, no-stress returns.
AMA sizing follows your baby's age range, but every little one grows differently.
0–3M — newborn to around 3 months
3–6M — around 3 to 6 months
6–9M — around 6 to 9 months
9–12M — around 9 to 12 months
12–18M — around 12 to 18 months
Choose the larger size.
If your baby is near the end of an age range, taller than average or you'd simply like a little more room to grow, size up.
For example:
Almost 6 months? Choose 6–9M rather than 3–6M.
If the romper is for a birthday, holiday, photoshoot or gift a few weeks away, consider the next size up if your baby is already approaching the end of their current range.
When in doubt, size up.
Need help? Send us your baby's age, height and weight, and we'll help you choose.
What touches their skin matters.
AMA is made from a carefully selected bamboo + cotton blend, combining softness and breathability with the practicality baby clothes need.
Hypoallergenic comfort
Designed with delicate and sensitive baby skin in mind.
AZO-free dyes
The dyes used in our fabrics are free from restricted AZO colorants that can break down into potentially harmful aromatic amines. In simple terms: we choose a safer approach to colour for clothing that sits directly against your baby’s skin.
OEKO-TEX® STANDARD 100 — Product Class I
Product Class I is OEKO-TEX®’s strictest product class, created for textiles intended for babies and young children. Certification means the tested textile has been checked against limits for a wide range of regulated and potentially harmful substances.
It’s an extra layer of reassurance for something your baby may wear against their skin for hours.
✓ Hypoallergenic
✓ Bamboo + cotton
✓ AZO-free dyes
✓ OEKO-TEX® STANDARD 100 · Product Class I
✓ Soft & breathable
✓ Made for extended everyday wear
Easy care for real life.
Because baby clothes are supposed to get messy.
Machine wash at 30°C
Gentle cycle
Wash inside out
Use a mild baby detergent
Laundry bag recommended for styles with ears or appliqués
Do not tumble dry
Dry flat or naturally in the shade
Every AMA order is carefully prepared before beginning its journey to you.
Free Worldwide Shipping
No additional shipping fee at checkout.
Processing: 1–2 Business Days
Your order is prepared and checked before dispatch.
Delivery: 7–14 Business Days
Estimated delivery after processing.
Tracking Included
You'll receive your tracking information by email as soon as the order ships.
Babies grow quickly — we understand.
If the fit isn't right, contact us and we'll help arrange your size exchange.
You have 30 days to return eligible items in their original, unworn and unwashed condition.
Most baby costumes are designed around how they look.
We start with what touches their skin.
Every AMA piece is built around four things: better fabric, safer chemistry, baby-first construction and lasting comfort.
•FABRIC
Bamboo 20% + Cotton 80%
Soft, breathable and made for delicate skin.
•CHEMISTRY
Safer from the start.
AZO-free dyes and OEKO-TEX® STANDARD 100, Product Class I materials.
•CONSTRUCTION
Built for little bodies.
Soft seams, printed neck labels and easy-change snaps.
•FINISHING
Made to be worn. Again and again.
Thoughtful printing and finishing designed for everyday washing and wear.
Hypoallergenic & independently certified
OEKO-TEX® STANDARD 100 · Product Class I
✓ Soft, breathable bamboo + cotton
Made for extended everyday comfort
AZO-free dyes
Thoughtfully chosen for delicate baby skin
Made for more than the moment.
Our bamboo + cotton fabric helps air circulate around little bodies, keeping the romper light and comfortable through photos, playtime and everything after.
Comfort lives in the details.
Printed labels, thoughtful finishing and carefully selected materials mean fewer unnecessary distractions against sensitive skin.
Made around little bodies.
Soft seams and baby-focused construction help reduce unnecessary irritation where the garment meets delicate skin.
Because babies are still babies.
Quick-access snaps make diaper changes easier without taking the entire outfit apart.
It starts with the fabric.
Bamboo + Cotton
We chose a bamboo + cotton blend for the part of AMATERASU your baby experiences most: the fabric against their skin.
Soft to the touch. Lightweight. Breathable. Made for extended wear.
Because comfort shouldn’t be an afterthought added to a costume. It should be where the design begins.
Gentle starts with safer choices.
Gentle starts with safer choices.
Certified Materials
Our materials are independently certified to OEKO-TEX® STANDARD 100, Product Class I the strictest product class for babies and young children.
We use AZO-free dyes, and our fabrics are tested against the harmful substances covered by the certification standard.
Every detail makes a difference.
Every detail makes a difference.
Baby-First Construction
Soft seams help reduce unnecessary rubbing, while a printed neck label means no traditional sewn-in tag scratching at the neck.
Baby-friendly snaps make changes easier. Every detail is designed around movement, crawling and real baby life.
Made for everyday baby life.
Made for everyday baby life.
Easy Everyday Care
Our rompers are wash-tested for repeated everyday care while maintaining their softness, shape and character.
Machine wash at 30°C. Designed for repeat washing, with tested shape retention and colour durability. No dry cleaning required.
