👟 PROOF CLAS-XL 10 work boots — safety, comfort and durability at the highest level
The CLAS-XL 10 footwear model combines traditional reliability with modern protective solutions. It has been designed for professionals who need reliable footwear in all working conditions. Made of high-quality grain leather and equipped with lightweight yet extremely durable protective components, these boots guarantee maximum safety, comfort and durability throughout the day.
Key features and benefits
- Upper material: breathable full-grain leather, embossed (1.8–2.0 mm) — a natural and durable material that provides good ventilation for the foot.
- PU/PU sole — resistant to wear, cracking, slipping and heat.
- 200 J composite toe cap — lighter than steel, but effectively protects the toes.
- Sweat-absorbing textile insole, supported by anatomical sponge (3 mm) — improves comfort.
- Kevlar anti-puncture insole — protects against sharp objects from outside.
- Upper with a raised construction — stiffens the ankle and protects it from twisting.
- ESD (electrostatic) properties — the model meets electrostatic discharge standards.
- Standards: EN ISO 20345:2022 S3 SR FO — guarantee of compliance with international safety standards.
Where are these boots suitable for use?
- Production plants and industrial halls.
- Construction.
- Warehouses and logistics.
- Work with heavy objects or in environments with mechanical hazards.
Why do users choose Clas-XL 10 boots?
🌟 S3 safety class, which means protection against moisture, water, punctures, and solid toe protection.
🌟 Users appreciate the durability of the material and the fact that the leather allows the foot to breathe, which reduces overheating and discomfort during long periods of wear.
🌟 ESD (antistatic) function – useful where there is a risk of static electricity – the footwear helps to discharge electrostatic charges.
🌟 Reduced fatigue and less strain on the spine
Thanks to the appropriate design of the insoles, soft sole and lightweight elements (e.g. composite toe cap), users feel less discomfort even after many hours.
Available sizes
35–50. A detailed size chart is available in the photos tab.
Full technical data for Clas-XL 10 footwear can be found in the ‘Additional information’ section.
| Shoe size | , , , , , , , , , , , , , , , |
|---|---|
| Type | |
| Protection class | |
| Sole class |
SR FO |
| Outer material of the shoe |
grain leather |
| Sole material |
PU/PU |
| Colour | |
| Sole Color |
gray |
| Insert type |
textile, kevlar |
| Toe cap | |
| Clasp |
laced |
| Insulated |
no |
| ESD properties |
yes |
| Waterproof properties |
no |
| Meets HACCP criteria |
no |
| Standards |
EN ISO 20345:2022 S3L SR FO |
| Properties |







