What a driver sees when they can't see your child: reflective elements on a backpack from behind the wheel

What a driver sees — and what you've got wrong about it

From behind the wheel, at dusk, at 50 km/h in a built-up area — a child in a dark jacket with a dark school backpack blends into the surroundings roughly 25 metres in front of the bumper. Yet the braking distance on a wet road is around 28 metres. That's the whole physics of the situation, and no slower driving style can improve on it. The driver either registers the child in time, or doesn't.

Most parents picture a dangerous situation as a road at night with no pavement. But most accidents involving pedestrians happen in built-up areas, at dusk, in places where pedestrians are allowed to walk. Your child doesn't have to do anything wrong. It's enough that the driver physically can't see them.

A reflective element on a backpack solves this problem. But only if it's in the right place, large enough and working. And that's far from a given.

Why dusk starts earlier than you think

An overcast day is more deceptive than darkness

The human brain gets used to light fading gradually and doesn't correct for it. The driver feels they can see well. Their eyes adjust. But the contrast between a pedestrian and the background drops much faster than the driver realises. Paradoxically, the diffuse light of an overcast sky is more treacherous than a clear night — in complete darkness the driver at least expects not to see something and automatically slows down. At dusk, they don't.

When dusk becomes dangerous — and it isn't at 20:00

In September, when school starts, the sun sets in the Czech Republic at around seven in the evening. But visibility drops below the safe threshold half an hour earlier — just when children are coming home from after-school activities. In October and November it's even worse: dusk falls at around four in the afternoon. A child in grades 4–9 coming home from school, training or a friend's house is hit by this period in full.

And here's the catch. You usually pick up first-graders. A child in fourth, fifth or sixth grade? They already walk on their own. That's exactly why older pupils are statistically more at risk than the youngest ones.

Where on a backpack a reflective element makes a difference — and where it's just a sticker for parents

The backpack's blind spots: the back is the worst place

A reflective element works simply — it reflects light back towards its source. In other words, towards the driver. But to do that, it has to be at an angle the headlights actually reach. A school backpack on a child's back mostly faces backwards. That means a reflective surface on the back panel works when a car is driving behind the child. But what about a car approaching from the side? From around a bend? From a side street?

That's why it matters whether the backpack has reflective elements not only at the back, but also on the sides and straps. A reflective element in one place is better than none. But three elements on three sides of the backpack are a fundamentally different level of protection.

What the EN 13356 standard means in practice

You'll find this marking on reflective accessories that have passed a standardised test — it measures how much light the material reflects back at a defined angle. Sounds simple, doesn't it? But not every reflective strip on a backpack meets this standard. Some ‘reflective’ elements are only fluorescent — they glow in daylight, but at dusk they don't reflect headlights. And dusk is exactly when you need them.

If you're thinking about accessories that will significantly boost visibility, take a look at BECKMANN reflective elements or at children's reflective vests, which cover the torso on all sides.

A test you can do in 90 seconds with a torch

Take your mobile phone and switch on the torch. Stand the backpack on the floor in a dark room — a hallway, a garage, anywhere. Step back three metres. Shine the light on the backpack from straight ahead, then from the side, then at an angle from below (this simulates a car's low-set headlights). Notice what lights up and what doesn't.

If the reflective surface only lights up from one angle, you know the backpack has blind spots. If it doesn't light up at all, you have a fluorescent print — not a reflector.

Try it tonight. It takes a minute and will tell you more than any description on the packaging.

Ages 10–15: why older children are at greater risk

First-graders go to school with their parents or in groups. They have colourful backpacks full of motifs, often with built-in reflective elements. Pupils in grades 4–9? They want to look different. Darker colours. A less ‘childish’ design. They often choose student backpacks or city models, where reflective elements aren't such a given.

At the same time, they get around more independently — by bike, by scooter, on foot across busy junctions. And they tend to look at their phones. That's a combination where a reflective element on a backpack stops being an accessory and becomes a safeguard. For these situations there are also clip-on lights, which simply clip onto a backpack or jacket.

What to do with a backpack that has no reflective elements

You don't have to buy a new backpack straight away. On our page about children's safety on the way to school you'll find an overview of accessories — from extra reflective elements and lights to reflective vests. What matters is that the accessory sits in the right place: on the sides and in the upper third of the backpack, where headlights reach it even from a lower angle.

And if your child's backpack does have reflective elements, do the torch test. Some reflective materials degrade over time — after two or three years of washing and wear, they reflect significantly less light than at the start.

Frequently asked questions

Where on a backpack should reflective elements be?

Reflective elements should be on the sides and back of the backpack, ideally in several places at once. One reflective strip at the back isn't enough — a car approaching from the side won't catch it. The more sides are covered, the better the chance that a driver will notice the child from any angle.

How can I tell if a reflective element on a backpack still works?

Shine a torch on the backpack (your phone's torch will do) in a dark room from about three metres away. A working reflector lights up brightly and reflects the light back. If the surface only has a dull sheen or doesn't light up at all, it's a fluorescent material or a worn-out reflector that no longer does its job at dusk.

Do BECKMANN school backpacks have reflective elements?

Yes. BECKMANN school backpacks come with reflective elements as standard. Extra reflective elements and lights are also available to boost visibility further — you'll find them in our category BECKMANN reflective elements.

Is a reflective vest necessary for a schoolchild if the backpack has reflective elements?

A reflective vest covers the torso on all sides and significantly increases the visible area. It's especially useful in the months when children walk to and from school at dusk — typically from October to March. A backpack with reflective elements protects the back and sides; the vest adds visibility from the front and increases the overall reflective area.

Will reflective elements on a backpack last through all the school years?

Reflective materials lose their reflectivity over time and with washing. After two to three years of intensive use, we recommend doing a simple torch test in the dark. If the reflector doesn't respond as strongly as before, it's time to add extra reflective elements or a light.

A reflective element on a backpack isn't about making you feel better as a parent. It's about giving the driver — someone who has never seen your child and doesn't know them — a chance to react. Those 25 metres we mentioned at the start? That's the distance at which everything is decided. You can work out the rest yourself.