Safety-relevant features which have to be considered according to BGR 191:

If you use any insole other than the standard checked one, the following parameters which have to be fulfilled according to EN ISO 20345 could change:

  1. The space below the toe protection cap (e.g. if the used insock is thicker than the standard one)
  2. The electronic flow resistance and therefore the results of the antistatic respectively the ESD efficiency
  3. The energy absorption of the seat region

When adjusting safety shoes orthopedically, the following parameters which have to be fulfilled according to EN ISO 20345 could change:

  1. The sole tearing force
  2. b) The electronic flow resistance and therefore the results of the antistatic respectively the ESD efficiency
  3. c) The energy absorption of the seat region

After the orthopedic modification, the parameters still have to comply with EN ISO 20345.

baak-konzept-imgDamit Sie sich bei der Arbeit mit Sicherheit wohlfühlen, haben wir unsere Sicherheitsschuhe nach dem Baak Wohlfühlkonzept entwickelt. Dieses Konzept beinhaltet folgende Aspekte:

Komfort, Schutz und Technologie
Diesen Komfort können Sie spüren.
Dieser Schutz bietet Ihnen Sicherheit.
Dieser Technologie können Sie vertrauen.

Um Ihnen die Auswahl unserer Baak Modelle zu erleichtern, haben wir bei den einzelnen Serien diese drei Aspekte besonders übersichtlich dargestellt.

mit Charakter

Baak Sports exclusive


mit Leichtigkeit

Baak Sports light


mit Sportlichkeit

Baak Sports


durch Funktionalität

Baak Industrial


mit Perfektion

Baak Perfect+


bei Kälte

Baak Polar


für aktive Frauen

Baak Woman premium


Auf den Hund

Baak DogWalker®


ESD Logo

More and more companies trust in protection by ESD safety shoes. ESD is the only protecting feature of safety shoes which is not only designed for the safety of the wearer but also for the protection of your products.

What does ESD (electrostatic discharge) mean?

Each of us “gets a jolt“ from time to time when touching a doorknob, other people etc. The reason is that you were charged electrostatically, for example while walking on a carpet. But sometimes the “friction” of your body at the air is sufficient. If you come close to an uncharged or differently charged object, a spontaneous discharge takes place, comparable to a mini-lightning. Human beings feel those discharges starting at a voltage of about 2,000V. Each of us causes small discharges every day, but they are not perceptible because most of them are considerably below 2,000V.

But if you are in touch with an electronic element, it might even be damaged due to the non-perceptible discharges. Besides this damage, the of this element could decrease, and as a consequence, your claim rate might raise.

But also in areas with an increased danger of fire or explosion, electrostatic discharges have to be avoided. They could fan flames or spark explosive gases.

There are various possibilities to avoid uncontrolled electrostatic discharges. Probably the most practical and flexible one is to wear ESD shoes on a grounded floor. The target is to be charged with a voltage at a maximum of 100 volts (currently recommended limit). Of course, your clothing and your entire workplace should have ESD properties, too.

What do Baak ESD safety shoes offer?

During the last years, Baak has become an ESD specialist. We are in constant information exchange with producers of ESD (measurement) products, certification institutes and acknowledged ESD experts. We have reached our goal to be an ESD specialist due to hard detail work. Besides the regular safety properties, all Baak safety shoes have been optimized in detail regarding their ESD ability, e.g. by electrostatic boards and insocks. That is why the recommended discharge resistance is certainly always fulfilled, even if there is only a partial contact of the sole to the grounded floor.

Recommended discharge resistance of the unit human/shoe/floor (ESD):
100 kOhm – 35 MOhm = 105 – 3,5 x 107 Ohm

Conversion table:

103 Ohm = 0,001 MOhm = 1 kOhm
104 Ohm = 0,01 MOhm = 10 kOhm
105 Ohm = 0,1 MOhm = 100 kOhm
106 Ohm = 1 MOhm = 1.000 kOhm
107 Ohm = 10 MOhm
108 Ohm = 100 MOhm
109 Ohm = 1.000 MOhm = 1 GOhm

With safety shoes from Baak, you don´t have to waste any more time thinking about ESD. Better keep an eye on other subjects, such as:

  • Health keeping
  • Lightness
  • Breathability
  • Outstanding full-surface damping
  • Option for the use of orthopedic in socks

You can find our ESD safety shoes here
Test our know-how. If you have further questions, we will be delighted to support you.

ESD and standards


Laboratory test according to DIN 61340 – 4 – 3
There is only one parameter in the norm which must be complied with. The discharge resistance of a shoe is determined using pebble beds; the resistance of one shoe must be between 100 KOhm and 100 MOhm.

Workplace test according to DIN 61340 – 5 – 1
But in practice it is the resistance of the unit human/shoe/floor which is relevant. This can be evaluated by different methods of measurement (single/parallel measurement), set to different, individual limits.

In the workplace test according to the standard, the recommended discharge resistance of the unit human/shoe/floor should not exceed 35 MOhm.


We would like to optimize our know-how for you, therefore we depend on your help. The more information we get from companies about their measuring methods and limit values, the better we can adapt our developments to the requirements in the practical use. If you want to support us, we would be delighted if you forward this questionnaire to us:

Baak GmbH & Co. KG
Hubertusstraße 3 · 47638 Straelen
Fax +49 (0) 2834 94241-69
Mail This email address is being protected from spambots. You need JavaScript enabled to view it.

Thank you very much.

Dependence on the climate
The electrostatic charge and discharge depend strongly on the air humidity and thus on the climate at the location. The lower the air humidity,the lower the discharge. At the same time, the charge increases strongly at a low level of air humidity.

The laboratory test (DIN 61340 – 4 – 3) is classified into 3 climate categories:

  • Climate class 3 = 50% air humidity
  • Climate class 2 = 25% air humidity
  • Climate class 1 = 12% air humidity

In all 3 classes, the discharge resistance levels must be the same; the classes only differ in the air humidity.


 Produced charge at air humidity
Source10–20 %65–90 %
Walking on a carpet 35,000 volts 1,500 volts
Walking on linoleum 12,000 volts 250 volts
Work at a work bench 6,000 volts 100 volts
Paper in plastic bag 7,000 volts 600 volts
Kunststoffbeutel 20,000 volts 1,00 volts
Upholstered chair 18,000 volts 1,500 volts

Advice for ESD safety shoes

  • Put on your ESD safety shoes at least 15 minutes before your work starts. Thus, an optimum contact between the foot and the safety shoe can be established due to the natural foot humidity – so you will get the best protection from the first minute of your work.
  • Keep the soles clean. Dirt can increase the discharge resistance.
  • Only use original insocks which have been certified together with your safety shoe. Further information

State-of-the-art safety shoes

Baak is an expert on safety shoes that are optimally suited to the foot. The company's own product development department keeps doing research on the latest technologies, materials and ideas for the sake of those who wear safety shoes. For example, Baak was the first safety shoe manufacturer to identify the excellent benefits of a lightweight, damping sole material from the running shoe sector and introduced EVA into the safety shoe industry with great success.

To keep improving our competence in optimally suited safety shoes, we also like to cooperate with experts from neighbouring disciplines. For example, we developed the Baak® go&relax system in cooperation with one of the world's leading biomechanists, Prof. Dr. Gert-Peter Brüggemann.

For Baak, a functioning quality management system plays an important role. The quality of the raw materials, the individual shoe parts and the finished safety shoes is controlled permanently. This is done by specially trained Baak staff at the production sites and, of course, also at the incoming goods department.

Are you interested?

We will be delighted to support you! Please contact us!

Being a foot is a hard job!

Being a foot is a hard job!

Our feet are exposed to high loads every day. On our feet, we walk almost half of the earth's circumference in our life. Our feet ensure that we stand in a stable position, and they adjust to the unevenness of the ground. They have special shock absorber functions to cushion our steps. With every step that we take while we walk, a foot bears at least the person's body weight. As our motion speed increases, the foot bears between two and five times our body weight (slow runs versus fast runs). If we consider the daily load that the feet bears while walking, that load can easily exceed 600t if the person's body weight is 75kg. If the marathon distance of 42km is run at a total time of 4:30 hours, this corresponds to a load of over 3000t on each foot – which is equal to the weight of 1.000 average elephants!

Adjusted to upright walking

Adjusted to upright walking

The shape and function of the foot are closely related to each other and make the foot's structure so unique. For about 3 million years, that structure has adjusted to upright walking on two legs. Today, our entire body weight is only borne by two feet instead of four. The body's centre of gravity has shifted upwards so that keeping one's balance has become considerably more complicated.

Feet – the only interface between the body and the ground

Feet – the only interface between the body and the ground

As the characteristics of the ground vary quite strongly occasionally (forest soil versus pavements), the foot must, on the one hand, be flexible and soft in order to adjust to uneven ground. On the other hand, it must be rigid and solid in order to transmit the force of the leg muscles to the ground. Here, the sensory feedback system of the foot is very helpful: You simply walk differently on sharp stones or hot ground. Thousands of nerve cells supply the central nervous system with information on the characteristics of the ground and the position of the foot and thus have a regulating effect on the movement sequences of the body. Therefore, the foot is often referred to as a "sensory organ" which, thanks to its complex functionality, fulfils the necessary requirements for everyday life and sports. In addition, each foot has about 90,000 sweat glands.

Perfect interaction!

Perfect interaction!

The skeleton of the foot consists of 26 bones, 33 joints, over 100 ligaments, 30 muscles and 60 sinews. Functionally, the foot is divided into three areas: hindfoot, midfoot and forefoot. Altogether, both feet contain about a quarter of all bones of the human body (about 208 bones).

Perfect architecture!

Perfect architecture!

In the back area of the foot, the bones are located above each other; however, in the middle and front areas, they are located next to each other. This creates a distinct longitudinal arch on the inside of the foot and a transverse arch running from inside to outside on the back part of the midfoot.

In close contact!

In close contact!

It is often written – wrongly – that the foot mainly rests on three points in standing position: the heel and the joints of the big and little toes. However, in measurements of the pressure distribution between the foot and the ground/shoe, it was found that the foot always has full ground contact when it bears loads in the area of the metatarsophalangeal joints. It can therefore be said that the model of the bearing on three points is outdated.

A shock absorber in the foot?

A shock absorber in the foot?

Foot arches are braced by ligaments and sinews and stabilized by muscles. They preserve the arched shape and form the basis of the perfect functioning of the foot. The main purpose of foot arches is to take and transmit loads while walking or running. If the arch is squeezed due to the load when the foot touches the ground, the bottom of the arch is stretched. If, however, this function is impaired, e.g due to weak foot muscles, the foot arches become lower in the long run and the shock absorption is restricted.

Different types!

The foot arch types: normal, flat, high

I) The foot arch types: normal, flat, high

Foot arches can have different heights. This may be due to inheritance, overweight, or more or less trained foot muscles. Shoe soles that are too stiff cause the foot muscles to atrophy so that the foot arch becomes lower. As you get older, it might even be possible that you will need longer or wider shoes due to the foot arches becoming lower. After all, your feet bear several 1,000 tons of weight over the years! Therefore, well-trained feet have a better ability to bear a foot's everyday loads and to protect against injuries. However, due to their more distinct muscles on the bottom side (which can be seen in footprints, for example), such well trained-feet often resemble feet with a flat longitudinal arch although they do not have one.

The foot shape types: Egyptian, Greek and Roman

II) The foot shape types: Egyptian, Greek and Roman

According to the difference in length between the big toe and the second toe, three foot shapes are distinguished:
Egyptian foot: The big toe is the longest (about 50%* of the population).
Greek foot: The second toe is longer than the big toe (about 40%* of the population).
Roman foot: The second toe and the big toe have the same length (about 10%* of the population). The names of the three types have been chosen according to depictions of feet and ideals of beauty in the ancient world.

*The percentage distributions vary according to the source of information.

Cushions of fat at the right places are good!

Cushions of fat at the right places are good!

Under the foot, in the sole, very important cushions of fat are located. They support the redistribution of the load while walking or running. The layer of fat consists of separate chambers that are moved against each other and compressed when they are exposed to loads.

Rolling over naturally is healthy!

Rolling over naturally is healthy!

All muscles and sinews contribute to the load being distributed evenly over the whole foot when walking – from the heel touching the ground to the outer edge, the outer ball, the metatarsophalangeal joints, the inner ball, and the repulsion over the big toe. While children up to the age of 10 touch the ground with almost the whole sole, rolling over automatically is natural for adults. But this is exactly what many shoes prevent – many shoes support the foot far too much. In that case, no more demands are made on muscles and sinews, and they atrophy. This can have negative effects on the entire locomotor system.
But soon there will be a solution! Baak has developed safety shoes that are optimally suited to the foot and allow it to move naturally – which has positive effects on the entire locomotor system.


Baak Unity Logo

A useful contribution to workplace health promotion. Available from Autumn 2015. Developed in cooperation with Prof. Dr. Gert-Peter Brüggemann, one of the world's leading biomechanists. Are you interested?

Send us an This email address is being protected from spambots. You need JavaScript enabled to view it. and we will inform you automatically as soon as information material and the shoes are available.

Aufkleber Postit HP GBThe key to success is interdisciplinary collaboration. Worldwide, Baak develops shoes in cooperation with many specialists, e.g. from the sports shoe industry, shoe orthopedics and biomechanics. The aim: With this know-how transfer, we want to keep on expanding our advantage in technology for the good of the safety shoe wearer.
The main task is the long-term maintenance of the wearer’s health, considering the individual requirements in his job. As a safety shoe expert, Baak is, of course in permanent exchange with specialists of various specific areas, such as ESD, the supply industry, testing and certificating institutes. And since its foundation, Baak has been a member of the German Standards Committee (Deutscher Normenausschuss).

We are especially delighted about the collaboration with Prof. Dr. Gert-Peter Brüggemann who stregthens our competence team “Feel good at work”.

Bruggemann Natural and functional foot load distribution
The shapes of the Baak® flex cap and the Baak® flex zone in the outsole are optimally suited to the foot and based on the natural bending line of the basic toe joints. Therefore, a safety shoe with the Baak® go&relax system, unlike a common safety shoe, bends in a way that is optimally suited to the foot's function. The foot is able to move in a natural and biomechanically correct manner. One of the world's leading biomechanists, Prof. Dr. Gert-Peter Brüggemann, was involved in the development of the Baak® go&relax system to a considerable extent.

Always stay fit
The Baak® go&relax system distributes the load optimally over all muscles and joints involved – with every step. The feet, muscles and joints stay fit. That relieves pressure on the entire musculoskeletal system. Unequal load distributions are prevented successfully. Walking is really comfortable. A shoe should always allow the foot to do what it wants to do naturally. Therefore, for people who wear safety shoes for many hours a day, a natural and functional foot load distribution is of particular importance. A useful contribution to company health management.

Safety shoes with Baak® go&relax system a useful contribution to company health management.

"A natural and functional foot roll in the shoe makes a contribution to the health of the foot, muscles and joints. It releases the whole musculoskeletal system" says Prof. Dr. Brüggemann.

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