Buying clothes for children online should be simple.
And yet, somehow, choosing between two sizes can turn into a full investigation. You check their age, look at the size chart, compare it with something already hanging in their wardrobe and then wonder whether they've suddenly grown three centimetres since last week.
The truth is, age is only a starting point when it comes to children's clothing sizes.
Children grow at different rates, and two children of the same age can have completely different builds. So instead of choosing a size based only on the number on the label, it's worth looking at how the garment is actually going to fit.
Start with measurements, not age
Age-based sizing is useful, especially when you're shopping quickly. But if you're buying online, measurements will usually give you a much better idea.
Depending on the brand, the most useful measurements can include your child's height, chest, waist and hip measurements. Have your child stand naturally, measure without pulling the tape too tightly, and compare those numbers with the brand's size chart.
And always check the individual brand's chart rather than assuming that a size 4 from one brand will fit exactly like a size 4 from another.
Because it probably won't.
What if your child is between two sizes?
This is probably the question parents ask most often.
If your child's measurements sit between two sizes, think about how the garment is meant to fit and how quickly your child is growing.
For something relaxed, like a T-shirt or a loose pair of shorts, going up a size can sometimes give them a little more room to grow.
But bigger isn't always better.
A T-shirt that's much too long or falls off the shoulders can be uncomfortable, while shorts that are too loose around the waist can make running and playing surprisingly difficult.
Think about the type of clothing
Not every piece of clothing needs to fit in exactly the same way. A T-shirt can have a little extra room and still feel comfortable, while shorts need enough space to move without slipping at the waist. A polo, on the other hand, can have a slightly neater fit, especially if you're dressing your child for a family lunch or a special occasion.
So when you're deciding between two sizes, don't just ask, “Will they grow into it?”
Ask:
“How is this particular piece supposed to fit today?”
That's usually a much better question.
Don't rely on the label alone
We've become very used to thinking in numbers: 2–3 years, 3–4 years, 5–6 years and so on. But those numbers are really just a guide. The actual shape and proportions of the garment matter too.
Some children are taller and slimmer. Some have broader shoulders. Some have longer legs. Some are simply growing faster than their friends.
None of that means they're wearing the “wrong” size. It just means their clothes need to fit their body.
Look at what already fits
If you're unsure about sizing, your child's existing wardrobe can actually be a useful reference.
Find a T-shirt or pair of shorts that fits them really well right now.
Look at the size. Check the measurements if they're available. Pay attention to what you like about the fit - is the T-shirt roomy without being oversized? Do the shorts sit comfortably at the waist? Is there enough length?
That gives you a much better starting point than guessing based on age alone.
And if you're shopping from a brand for the first time, comparing your child's measurements with that brand's size chart is still your safest bet.
What we think about at Tiny Atelier
At Tiny Atelier, we don't think children's clothes should fit like tiny versions of adult clothes.
Children need room to move. They need to be able to stretch, run, climb, sit on the floor and get involved in whatever adventure they've found that day.
That's why, when we're thinking about fit, we care about more than just whether a garment looks good on a child standing still.
It needs to feel good when they're moving too.
Because a T-shirt that looks perfect in a photograph but feels restrictive after ten minutes of play isn't really doing its job.
It's about finding something that fits the child they are today, while giving them enough freedom to be the little explorer they're becoming.