Kids’ Shoe Struggles? How to Find the Perfect Fit
Article in collaboration with adidas, who have gifted me products in return for a feature.
We have all been there. You are standing in a shoe shop with a screaming toddler or a grumpy teenager. You just want to buy a pair of trainers that do not hurt their feet. But it feels like mission impossible. One pair is too tight. The next pair is too loose. And the third pair is the wrong colour, apparently.
Finding shoes for kids is hard work. Their feet grow so fast it is like magic. One day their shoes fit perfectly. The next day, their toes are squashed against the end. It is frustrating and expensive. But getting the right fit is really important.
Children’s feet are soft and flexible. They are still growing and changing shape. If they wear shoes that do not fit well, it can cause problems. It can change how their feet grow. It can also cause pain in their knees or hips later in life. Nobody wants that for their child.
This guide is here to help you. We are going to talk about how to measure your child’s feet properly. We will explain what to look for in a good shoe. We will even talk about football boots for kids, because those can be tricky too. By the end of this, you will be a pro at shoe shopping. You might even enjoy it. Okay, maybe that is a stretch. But it will be easier.

Why the Right Fit Matters So Much
You might think, “They will grow out of them in a month, so does it really matter?” The short answer is yes. It matters a lot.
Think about your own feet. Have you ever worn shoes that were too small? Maybe for a wedding or a party? Remember how much your feet hurt by the end of the night? Now imagine feeling that way every day at school. It would make it hard to concentrate. It would make running around the playground less fun.
Kids run, jump, and climb a lot. Their feet need support. If their shoes are too big, they might trip and fall. If they are too small, their toes can get crunched. This can lead to blisters, ingrown toenails, and other painful things.
Also, the bones in a child’s foot are not fully formed until they are much older. Until then, much of their foot is made of cartilage. This is the same stuff your ears are made of. It is soft and can be moulded. Bad shoes can actually shape their feet in the wrong way. Getting the fit right helps their feet grow straight and strong.
When to Measure Their Feet
Timing is everything. You should not just guess your child’s size based on their last pair of shoes. Different brands fit differently. A size 4 in one shop might be a size 5 in another. You need to measure their feet every time you buy new shoes, whether they are boys’ trainers or wellies, girls’ trainers or plimsoles for PE.
But when is the best time to measure? The answer might surprise you. It is best to measure feet in the afternoon or evening.
Why? Because feet swell during the day. Walking, running, and standing make feet get a little bit bigger. If you buy shoes first thing in the morning, they might feel tight by lunchtime. Measuring later in the day makes sure the shoes will be comfortable all day long.
You should also measure their feet every six to eight weeks if they are toddlers. For older kids, checking every three months is usually enough. It sounds like a lot, I know. But their feet really do grow that fast.
How to Measure Feet at Home
You do not always need to go to a shop to get measured. You can do it at home easily. You just need a piece of paper, a pencil, and a ruler.
Here is a simple way to do it:
- Put the paper on the floor. Tape it down so it does not slip.
- Have your child stand on the paper. Make sure they are standing tall and looking forward. Their weight should be on both feet.
- Use the pencil to trace around their foot. Keep the pencil straight up and down. Do not tilt it under the foot.
- Do the same thing for the other foot. Most people have one foot that is slightly bigger than the other. You should always buy shoes for the bigger foot.
- Use the ruler to measure the tracing. Measure from the very back of the heel to the tip of the longest toe.
- Write down the measurement in centimetres or millimetres.
Once you have the number, you can look at sizing charts online. Most shoe companies have them. If you are looking at brands like adidas, they usually have very clear guides on their website to help you convert that measurement into a shoe size.
The Thumb Test
Let’s say you have bought the shoes. You are trying them on at home. How do you know if they actually fit? The tracing method gives you a size, but you still need to check the real shoe on the real foot.
This is where the “Thumb Test” comes in handy.
Have your child put the shoes on. Make sure they are wearing the socks they will normally wear with those shoes. Ask them to stand up.
Press your thumb down sideways at the end of the shoe. You should be able to fit the width of your thumb between the end of their longest toe and the end of the shoe.
Why do you need this space? It is for wiggle room. Toes need to move when we walk. They spread out a little bit. Also, feet slide forward slightly when we run. If there is no space, their toes will hit the front of the shoe. That hurts.
This space also gives them a little bit of room to grow. You do not want too much room, though. If you can fit more than a thumb width, the shoes are likely too big. Too big means they might trip over their own feet.
Checking the Width
Length is important, but so is width. Some kids have narrow feet. Some have wide feet. Just like adults.
If a shoe is too narrow, it will squeeze the sides of their feet. This can cause blisters and pain. If a shoe is too wide, their foot will slide around inside. This makes them unstable and can cause rubbing.
How can you tell if the width is right? Feel the sides of the shoe while your child is standing. You should be able to pinch a tiny bit of material at the widest part of the foot. If the material is pulled tight and bulging, the shoe is too narrow. If you can pinch a big fold of material, it is probably too wide.
Watch your child walk in the shoes. Do the heels slip up and down? That usually means the shoe is too wide at the back. Do they walk funny or drag their feet? That could mean the shoes are heavy or stiff.
Choosing the Right Material
Kids are messy. They jump in puddles. They kick dirt. They spill juice. So, you want shoes that are tough. But you also want them to be breathable.
Leather and canvas are usually good choices. They let air get to the feet. This stops them from getting too sweaty and smelly. Nobody likes smelly shoes in the hallway. These materials are also flexible. They bend when the foot bends.
Plastic or synthetic shoes can sometimes be too stiff. They might not let the foot breathe well. This can lead to sweaty, uncomfortable feet. However, some modern synthetic materials are very good. Many sports shoes use mesh that is light and airy.
Think about what the shoes are for. Are they for school? Leather is usually best because it is durable and easy to clean. Are they for playing in the park? Canvas trainers or sporty mesh shoes are great.
Laces vs. Velcro
This is the big debate. Laces or Velcro?
Velcro is amazing for younger kids. It makes life so much easier. They can put their own shoes on. You do not have to bend down fifty times a day to tie laces. It gives them independence. It also helps get out of the house faster in the morning.
Laces are better for getting a really secure fit. You can tighten them exactly where you need to. This is good for feet that are narrow or wide. But laces come with a problem. They come undone. A lot.
If your child cannot tie their own laces yet, be prepared to do it for them. Or look for different options. Some shoes have elastic laces that you do not need to tie. They just stretch to let the foot in. These can be a good middle ground.
If you choose laces for a younger child, make sure you double knot them. It saves a lot of tripping accidents.
Let’s Talk About Football Boots
Choosing football boots is a little different from choosing trainers. Football boots need to fit snug. They are like a second skin. This helps the player feel the ball better.
But “snug” does not mean tight. You still need some room. The rule of thumb changes a little here. Instead of a full thumb width, you might want about half a thumb width of space at the end.
Football boots for kids are usually made of synthetic materials or leather. Leather boots stretch a bit after you wear them a few times. Synthetic boots stay the same size. So, if you buy synthetic boots, make sure they fit comfortably right away. They will not stretch out to fit later.
There are different types of boots for different grounds. This can be confusing.
- Firm Ground (FG): These have plastic studs. They are for natural grass that is dry and firm.
- Soft Ground (SG): These often have metal studs. They are for muddy, wet grass.
- Artificial Grass (AG): These have lots of shorter studs. They are for fake grass pitches.
- Indoor: These have flat rubber soles. They are for playing in a sports hall.
It is important to get the right sole. If your child wears soft ground studs on hard artificial grass, they can hurt their knees. It is like wearing high heels on a trampoline. It is just not stable.
Brands like adidas make boots for all these different surfaces. Checking the box or the description will tell you which one it is.
Socks Matter Too
When you are checking the fit of a shoe, think about socks.
Thick woolly socks take up a lot of room. Thin cotton socks take up very little room. Football socks are thick and padded.
If you measure your child’s feet while they are barefoot, but they will wear the shoes with thick socks, the shoes will be too tight.
Always have them wear the correct socks when trying shoes on. If you are buying football boots, take their football socks to the shop. If you are buying school shoes, take their school socks. It seems like a small thing, but it makes a big difference to the fit.
Listening to Your Child
This sounds obvious, but listen to what your child says. If they say the shoe hurts, believe them. Even if the measurement says it should fit. Even if the thumb test looks okay. If it hurts, it hurts.
Sometimes a shoe has a seam that rubs. Or a tag that scratches. You might not be able to see it, but they can feel it.
However, sometimes kids say funny things. They might say a shoe is “too tight” when they actually mean it feels different or stiff. Ask them to point to where it hurts. Is it the toe? The heel? The side?
Also, watch out for the “I love them” trap. If girls trainers has their favourite cartoon character on it, or lights up when they walk, they will tell you it fits perfectly. Even if their toes are completely crushed.
This is why you need to check the fit yourself. Do the thumb test. Check the width. Watch them walk. Do not just take their word for it if they are staring lovingly at a picture of a superhero on the side of the shoe.
Breaking Them In
New shoes can be stiff. They might need a little bit of time to soften up. This is called “breaking them in.”
Do not let your child wear brand new shoes for a full day at school or a long hike straight away. That is a recipe for blisters.
Let them wear the new shoes around the house for an hour or two. Do this for a few days. This lets the material soften and mould to their feet. It also lets you spot any rubbing before it becomes a big problem.
If you notice a red mark on their foot after they take the shoe off, that is a warning sign. It means the shoe is rubbing there. It might need more breaking in, or it might be the wrong fit.
Passing Shoes Down
It is tempting to pass shoes down from an older child to a younger one. Shoes are expensive, and kids grow out of them fast. It seems wasteful to throw them away.
But be careful with this. Shoes mould to the shape of the foot that wears them. If your older child has wide feet and your younger child has narrow feet, the old shoes will not support the younger child properly. The cushioning inside wears down too.
Generally, it is okay to pass down barely worn shoes. Maybe a pair of wellies or snow boots that were only worn a few times. But for everyday trainers or school shoes, it is usually better to buy new ones. Each child’s feet are unique. They deserve their own footprint.
Summary Checklist
Here is a quick checklist to help you next time you are shopping:
- Measure later in the day. Feet are bigger in the afternoon.
- Measure both feet. Fit the shoes to the larger foot.
- Wear the right socks. Thick socks need more room.
- Do the Thumb Test. Leave a thumb width of space at the end.
- Check the width. Make sure the foot is not squeezed or swimming.
- Watch them walk. Look for heel slipping or funny walking.
- Check inside. Feel for rough seams or tags.
- Trust your checks. Do not just trust the cartoon character on the side.
You Can Do This
Buying shoes for kids can feel like a chore. But it feels good when you get it right. You know your child is comfortable. You know their feet are safe. You know they can run and play without pain.
Take your time. Do not rush it. If a shop is busy and stressful, come back another time. Or measure at home and order online from places with good return policies.
Remember, you are doing a great job. Even if they are screaming in the shop. Even if they refuse to try on the sensible shoes. We have all been there. Grab a coffee afterwards. You earned it.
And hey, before you know it, they will be teenagers buying their own shoes. Then you will have a whole new set of problems to worry about!






