👟 PROOF Combo S3S SR HRO FO ESD Nubuck work shoes — comfort and safety at the highest level

PROOF Combo ESD Nubuck high-class S3S SR HRO FO shoes are professional protective footwear in brown, designed for employees who require maximum protection, comfort and a modern look. Made of nubuck leather and featuring advanced technologies, this model is perfect for dynamic working conditions.

Top-level protection

The shoes meet the requirements of EN ISO 20345:2022 and have an S3S ESD SR HRO FO protection class, which means they are water-resistant, puncture- and slip-resistant, and safely dissipate electrostatic charges.
The composite toe cap protects the toes from impacts of up to 200 J, while remaining lightweight and comfortable.

✅ Main advantages and design features

• Protection class S3S – provides comprehensive protection against mechanical hazards and reduces water penetration.
• ESD properties – helps dissipate electrostatic charges, which increases safety in environments where electrostatic discharge may occur.
• 1.8–2.0 mm thick nubuck leather upper – high-quality material offering a good balance between durability and the comfort of a leather finish.
• COOLMAX technology – a 3 mm thick textile insole that absorbs sweat, supported by an anatomical sponge, improves ventilation and reduces overheating of the feet.
• Polyurethane sole (PU/PU) – resistant to wear, cracking, slipping and heat; the design increases comfort and reduces strain on the spine.
• Composite toe cap (200 J) – lighter than steel equivalents, providing effective protection for the toes.
• Kevlar anti-puncture insert – protects the sole against sharp objects while maintaining flexibility.
• Smart lacing system – allows for a precise fit, increasing stability and comfort.
• Reinforced toe and heel areas – provide better resistance to mechanical damage in particularly vulnerable areas.
• Modern design with reflective elements.

Application and working environments

The Combo model is suitable for:

• Production plants
• Warehouses and logistics work
• Construction and renovation work
• Industries requiring electrostatic dissipation (e.g. electronics)
• Environments where complete waterproofing is not required

Why choose PROOF Combo?

🌟 The perfect combination of safety, durability and comfort – without compromise

🌟 Materials and design solutions used in professional safety footwear

🌟 Use of modern technologies (composite toe cap, Kevlar, ESD, reflectors)

🌟 Joint relief and comfort throughout the day. The soft, springy sole reduces strain on the spine and joints — important when you are on your feet a lot. The lacing system allows the shoe to fit the foot well.

Available sizes

36–48. A detailed size chart is available in the photos tab.

Full technical specifications for Combo footwear can be found in the ‘Additional information’ section.