
Kids Tops and Onesies
Our baby and toddler onesies are irresistibly soft yet durable enough for all your little one's adventures. From short sleeve to long sleeve, kimono style and bottom snaps, all our onesies are made with eco-friendly and hypoallergenic materials like bamboo and cotton.


Let's Talk About Kids Tops and Onesies
Keep your little one comfy through the day in our classic baby onesies, made from soft bamboo, organic cotton, and avocado fabrics.
Choose from short-sleeve, long-sleeve and kimono styles for every season. Thoughtful details like snap button closures make dressing and diaper changes a little easier.
Soft and gentle on sensitive skin, yet durable enough for everyday wear.
FAQs About Kids Tops and Onesies
What size onesie does a newborn need?
Most newborns start in NB or 0–3 month sizing, though babies grow quickly so it's always handy to have a couple of sizes ready. Check the size guide on each product page to find the most accurate fit for your little one right now, based on their weight and height.
Are onesies suitable for newborns?
Yes, onesies are one of the most loved and practical options for newborns. Our baby onesies are made from soft, hypoallergenic bamboo and organic cotton—gentle enough for the most delicate skin. Snap closures at the bottom make diaper changes easy, and our kimono styles are especially newborn-friendly.
What material is best for baby onesies?
Soft, breathable, hypoallergenic fabrics are what you want against your baby's skin. Nest Designs uses bamboo and GOTS-certified organic cotton—both free from harsh chemicals and beautifully gentle on little ones. Bamboo is also naturally thermal-regulating and moisture-wicking, so your bub stays comfortable from morning to night.
Can onesies be worn as baby sleepwear?
Definitely. Onesies make a great base layer under a TOG-rated sleep bag, or can be worn on their own as sleepwear in warmer weather. Our onesies are made from breathable bamboo and organic cotton, making them a cozy and safe choice for both daytime adventures and bedtime.
