You're standing in a shop or scrolling through an online store, and you read the same thing everywhere: 100% cotton, rib, muslin, interlock. But what actually feels good on your baby's skin – and what's just a word on the label? Here's a no-nonsense overview to help you decide faster next time you shop.
Why cotton baby clothes are usually the best choice
Baby skin is thinner than adult skin and more sensitive to friction and moisture. Cotton scores here for three reasons: it absorbs sweat, it's breathable, and it copes with hot washes – which matters every single day with spit-up bodysuits and nappy-change mishaps.
To be fair, there's a downside too: wet cotton dries slowly and gets cold. At home that's not a problem, but on a walk or in the car it's worth having a dry spare with you. As a rule of thumb: several thin layers rather than one thick piece.
Rib, jersey, muslin: the fabrics compared
All four fabrics below can be made from 100% cotton – the difference lies in how the fabric is made, and that determines stretch, warmth and how it feels on the skin.
| Fabric | Properties | Ideal for |
|---|---|---|
| Rib jersey (rib) | Fine vertical ribs, very stretchy, keeps its shape, grows with your baby a little | Bodysuits, leggings, sets that should fit for longer |
| Single jersey | Smooth, light, the classic for printed pieces | Short-sleeved bodysuits, summer clothes, printed designs |
| Muslin (gauze) | Double-woven, airy, gets softer with every wash, creases visibly | Muslin swaddles, burp cloths, light blankets |
| Interlock | Double-knit, denser and warmer, doesn't curl at the edges | Transitional and winter pieces, sleepsuits |
For everyday life with a newborn, rib is often the most practical compromise: stretchy enough to pull over the head, tough enough for the laundry basket. Our ribbed short-sleeved bodysuits in a 5-pack are made for exactly that. Muslin, on the other hand, is rarely used for clothing but turns up everywhere else – with our cotton muslin swaddles, you'll clearly notice how much softer they get after three or four washes.
How to spot good quality
The fabric content on the label tells you what a garment is made of – not how well it's made. You can check these points on the fabric itself:
- Seams: Flat and soft, ideally on the outside or neatly finished on the inside. Run your finger over the shoulder and crotch seams.
- Labels: Printed labels don't scratch. Sewn-in tags at the neck are the most common reason a baby starts fussing as soon as they're dressed.
- Neckline: An envelope neckline or a button opening at the shoulder makes dressing much easier.
- Poppers at the crotch: They should be firmly attached but easy to open with one hand – you'll be using them several times a day.
- Print quality: A design that feels hard and plasticky is unpleasant on the skin. On bodysuits, the print belongs on the outside anyway.
- Fabric weight: Hold the fabric up to the light. Very thin, see-through fabric loses its shape after just a few washes.
Blends: when elastane and polyester make sense
A small elastane content of around 3 to 5% isn't a flaw – quite the opposite: it helps cuffs and necklines spring back into shape after washing. For leggings and bodysuits that get stretched a lot, that's a real advantage.
It's a different story with a high polyester content right next to the skin. Polyester hardly absorbs any moisture, so your baby sweats more quickly underneath it. The fibre makes sense where wind and water protection matter: in all-in-ones, jackets and rainwear – in other words, over the cotton layers rather than under them.
Does it have to be organic cotton?
“Organic” refers to how the fibre is grown: fewer synthetic pesticides, controlled farming. That's mainly an environmental argument – organic cotton doesn't automatically feel softer on the skin than conventional cotton of the same quality.
For sensitive baby skin, something else often matters more: how the finished fabric is treated, meaning the dyes and chemicals used in processing. Labels such as OEKO-TEX Standard 100 focus on exactly that and test the finished textile for harmful substances. If you have to choose between two items, look for a label like this and clean workmanship rather than relying on the word “organic” alone.
Safety: three quick things to check
- No cords around the neck and head. Ties have no place there on baby clothes.
- Give appliqués and buttons a tug. Before the first wear, give bows, little flowers and bears a quick pull – anything a baby can put in their mouth must be firmly attached.
- A good fit rather than sizing up to stock up. Pieces that are too big ride up, pieces that are too tight rub at the neck and legs.
If your baby's skin stays red or irritated despite soft cotton, bring it up at the next check-up with your paediatrician. At that point, it's no longer a question of the right fabric.
Before the first wear: wash once
New clothes should go in the washing machine before they're worn for the first time – it removes residues from production and transport and makes the fabric softer straight away. To find out how to wash cotton without it shrinking or going stiff, read our post Washing baby clothes: 8 tips for soft cotton.
The bottom line
You don't need to become a textile expert. Just remember: 100% cotton as the basis, rib for pieces that should grow with your baby, muslin for everything to do with changing and feeding, synthetic fibres only as the outermost layer. And take a quick look at the seams, label and poppers in the shop or when unpacking – that tells you more about quality than any product description.
At sunnozy, you'll find baby clothes made from 100% cotton – from the “Hello World” newborn essentials set to the bib and sock set. Take your time to browse – we ship from Switzerland.