Baby Onesies & Jumpsuits — Soft Cotton, Sizes 0000–2

Shop our full range of Australian baby onesies and jumpsuits — ribbed, apple-knit, lightweight eco, and more. All feature two-way hidden zips, fold-over feet, and fabrics gentle enough for newborn and eczema-prone skin.

Baby Onesies

Baby Onesies, Jumpsuits & Rompers: Australian Designed

Rai & Co's full collection of baby onesies, jumpsuits, and rompers, everything Australian mums reach for first when dressing their newborn or toddler. Every piece in this collection is made from soft, breathable cotton and designed with the practical features that actually make a difference: two-way zips for easy nappy changes, fold on/off feet for warmth that adjusts as your baby grows, and fabrics gentle enough for sensitive and eczema-prone skin from day one.

We make two signature fabric ranges, our Ribbed Collection (95% Cotton / 5% Spandex, 250gsm embroidered ribbed texture, midweight) and our Apple Collection (95% Cotton / 5% Spandex 280gsm for the plain colours and 220g for the floral range, so you can choose the right fabric for your baby's needs and your climate. Both ranges are available in sizes newborn (0000) through to size 1 in a palette of muted, minimalist tones designed to mix, match, and be passed from one child to the next. Our lightweight range in a supersoft 190g weight is ideal for those warmer climates.

Whether you're shopping for your first baby, building a baby shower registry, searching for a newborn gift, or adding to a toddler's wardrobe, this is where to start. All onesies and jumpsuits are suitable for everyday wear and sleepwear, compliant with Australian children's sleepwear standards.

Shop by Fabric

  • Ribbed Onesies & Jumpsuits, embroidered ribbed cotton, midweight, available plain and frilled
  • Apple Onesies & Jumpsuits, apple knit cotton, slightly thicker, available plain, frilled, and floral
  • Lightweight Eco Onesies, EcoCosy fabric, perfect for warmer weather and sensitive skin

Free shipping on all Australian orders over $100. Afterpay and Zip Pay available at checkout. 

Not sure what size to buy? Check our Size Guide here.

How do I care for these baby jumpsuits?

Our baby jumpsuit collection is designed for everyday comfort and easy care. They're gentle on delicate skin, made for movement, and simple to keep clean. For best results, we recommend a cold hand wash before first use and for ongoing care. They can also be machine washed on a cool, gentle cycle with similar colours. Be sure to check the care label, and avoid fabric softeners—especially for sleepwear—to maintain safety and quality.

FAQs

How do you fold a baby onesie neatly?

Lay the onesie flat, fold the sleeves inward, then fold the legs up to the middle, and finally fold in half for a compact fit.

What is the difference between a onesie and a romper?

 A onesie usually covers the baby's arms and legs, while a romper is shorter in the leg and often short-sleeved.

Are baby onesies suitable for overnight sleep?

Yes, many baby onesies are designed with comfort and safety in mind, making them ideal for overnight sleep, especially if they have breathable fabrics and secure fastenings.

How many onesies does a newborn need?

It’s recommended to have around 5–7 onesies for a newborn, as they often require multiple changes each day due to spills and nappy changes. Rai & Co's onesies are designed with two-way zippers for easy nappy changes, making it even more convenient for parents.