The primary European standard for safety footwear, including boots for security guards, is EN ISO 20345. This standard mandates that the footwear includes a toe cap tested to withstand a 200-joule impact and a 15-kilonewton (KN) compression force, providing a baseline for certified protection against common workplace hazards.
While EN ISO 20345 sets the foundational safety requirement, the specific rating—such as S1, S1P, or S3—is what truly determines if a boot is suitable for the varied demands of a security guard's role, from long periods of standing to patrolling in adverse weather.

Decoding the EN ISO Standards
To select the right footwear, you must understand how the core standard is broken down into specific classifications. Each classification adds layers of protection suited to different work environments.
The Core Standard: EN ISO 20345
This is the main specification for what is legally considered "Safety Footwear" in Europe. Its non-negotiable feature is a 200-joule protective toecap. This protects the wearer from heavy falling objects, a fundamental risk in many operational environments.
Understanding the Key Safety Ratings
Below the main standard are sub-ratings. For a security role, the most relevant are:
- SB (Safety Basic): The boot meets the minimum requirement of a 200-joule toecap. It offers no other protective features.
- S1: Includes the SB toecap plus anti-static properties and energy absorption in the heel. This is crucial for comfort during long shifts on hard surfaces.
- S1P: Contains all the features of S1 but adds midsole penetration resistance, protecting against sharp objects underfoot like nails or broken glass.
- S2: Has all the features of S1 but also includes a water-resistant upper.
- S3: Combines all features of S2 and S1P. It is the most comprehensive rating for general use, offering a toecap, anti-static properties, heel energy absorption, a water-resistant upper, and midsole penetration resistance.
Context: Other Footwear Standards
To avoid confusion, it's helpful to know what other standards signify:
- EN ISO 20346: Defines "Protective Footwear." These boots have a toecap that withstands a lesser 100-joule impact. They are not suitable for environments requiring full safety-rated protection.
- EN ISO 20347: Defines "Occupational Footwear." This footwear has no protective toecap but may include other features like slip resistance or anti-static properties. It is designed for comfort and slip prevention where impact risk is negligible.
Critical Features Beyond the Rating
A boot's rating is only part of the equation. For a security professional who spends hours on their feet, practical features are just as important as technical specifications.
All-Day Comfort and Support
Long shifts require more than just protection. The boot must be comfortable and supportive to prevent fatigue and long-term strain. Key features include a breathable lining to manage moisture and removable, cushioned insoles.
Superior Slip Resistance
Slips, trips, and falls are among the most common workplace accidents. A slip-resistant outsole, typically made of rubber or polyurethane (PU), is a non-negotiable feature. Check for an "SRC" rating, which indicates the highest level of slip resistance testing.
Durability and Weather Protection
A security role can take you from indoor patrols to outdoor monitoring in an instant. The boot's upper should be made from a durable material like leather, which can be treated for water resistance. This ensures the boot remains effective and comfortable in varied conditions.
A Note on Global Standards
While EN ISO 20345 is the European standard, you may encounter others:
- ASTM: The American Society for Testing and Materials sets the standards for safety footwear in the United States.
- OSHA: The Occupational Safety and Health Administration is the US government agency that enforces workplace safety, requiring compliance with ASTM standards.
- CE Marking: This mark signifies that the product complies with EU safety, health, and environmental protection requirements. All EN ISO 20345 boots sold in the EU must have it.
Understanding the Trade-offs
Choosing the right boot involves balancing protection with practical needs. Over-specifying can be as problematic as under-specifying.
Protection vs. Flexibility and Weight
Higher levels of protection, such as those found in S3 or S5 boots, often mean a heavier and more rigid boot. While necessary for high-risk areas, this can lead to fatigue over a 12-hour shift spent mostly walking or standing.
Waterproofing vs. Breathability
Fully waterproof boots (S4/S5) are excellent for wet environments but offer very little breathability. For mixed indoor/outdoor roles, a water-resistant S3 boot often provides a better balance, keeping feet dry from splashes while allowing moisture to escape.
Making the Right Choice for Your Role
Your specific duties and environment should dictate your final choice.
- If your primary focus is indoor patrols with minimal hazards: An S1 boot provides the necessary toecap protection and crucial all-day comfort with its energy-absorbing heel.
- If you work in an environment with potential sharp objects (e.g., depots, construction sites): An S1P or S3 rating is essential for its midsole penetration resistance.
- If your role involves significant time outdoors or in wet conditions: An S3 boot is the most reliable choice, offering a combination of water resistance, penetration resistance, and all other core safety features.
Ultimately, the correct standard provides a foundation, but your daily reality determines the specific features you need to stay safe and effective.
Summary Table:
| Rating | Key Protective Features | Ideal For Security Roles Involving... |
|---|---|---|
| S1 | 200J toecap, anti-static, heel energy absorption | Primarily indoor patrols, long hours standing |
| S1P | All S1 features + midsole penetration resistance | Potential sharp objects (e.g., glass, nails) |
| S3 | All S1P features + water-resistant upper | Outdoor patrols, wet conditions, varied hazards |
Ensure your team is equipped with the right safety footwear. As a large-scale manufacturer, 3515 produces a comprehensive range of EN ISO 20345 certified safety boots for distributors, brand owners, and bulk clients. Our production capabilities encompass all types of safety shoes and boots, ensuring durability, comfort, and compliance for security professionals.
Contact us today for a quote and let us help you protect your team with the right boots for the job.
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