Professional S3 WR HRO SRC waterproof non-metallic safety boot developed for demanding UK construction, utilities and heavy industrial environments.
• Side zip fastening for rapid access and secure fit
• 100% non-metallic construction suitable for security-sensitive environments
• Fibreglass 200J protective toe cap
• Activ-Step® penetration resistant midsole tested to 1100N
• HI and CI insulation for heat and cold environments
• FORCE10® GR100 solid nitrile rubber outsole, heat resistant to 300°C
• 8.5 inch boot height – approx. 993g weight
• UK sizes 7–12
• EN ISO 20345:2011 S3 HI CI WR HRO SRC certified
Rock Fall Titanium (RF4500) Safety Boot – Side Zip – 100% Non-Metallic – S3 WR HRO SRC – Black
Professional S3 WR HRO SRC waterproof non-metallic safety boot developed for demanding UK construction, utilities and heavy industrial environments.
• Side zip fastening for rapid access and secure fit
• 100% non-metallic construction suitable for security-sensitive environments
• Fibreglass 200J protective toe cap
• Activ-Step® penetration resistant midsole tested to 1100N
• HI and CI insulation for heat and cold environments
• FORCE10® GR100 solid nitrile rubber outsole, heat resistant to 300°C
• 8.5 inch boot height – approx. 993g weight
• UK sizes 7–12
• EN ISO 20345:2011 S3 HI CI WR HRO SRC certified
Rock Fall Titanium (RF4500) Safety Boot – Side Zip – 100% Non-Metallic – S3 WR HRO SRC – Black is engineered for high-demand construction, utilities and infrastructure environments where waterproof performance, underfoot protection and durability are essential. Certified to EN ISO 20345:2011 S3 HI CI WR HRO SRC, it meets UK compliance standards for impact resistance, penetration protection, heat resistance, insulation and slip performance.
The boot incorporates a lightweight fibreglass 200 joule toe cap and an Activ-Step® penetration resistant midsole tested to 1100N, delivering dependable protection against falling objects and sharp underfoot hazards. Its Activ-Tex® waterproof and breathable membrane works alongside LWG Gold rated full grain leather to maintain dryness in wet conditions. The FORCE10® GR100 solid nitrile rubber outsole provides high abrasion resistance and heat resistance up to 300°C.
Additional protection is delivered through the FORCE10® scuff cap, IMPACTSHIELD™ internal digging plate and R-ten™ abrasion resistant thread.
✓ Fully waterproof and breathable construction
✓ 100% non-metallic safety build
✓ Heat and cold insulation performance
✓ Durable FORCE10® outsole system
✓ Integrated internal digging plate protection
✓ Designed for heavy-duty site environments
Specifications Table – Rock Fall Titanium (RF4500) Safety Boot
| Specification | Details |
|---|---|
| Product Name | Rock Fall Titanium (RF4500) Safety Boot – Side Zip – 100% Non-Metallic – S3 WR HRO SRC – Black |
| Product Code | RF4500 |
| Safety Standard | EN ISO 20345:2011 |
| Safety Rating | S3 HI CI WR HRO SRC |
| Toe Protection | Fibreglass toe cap – 200J |
| Midsole Protection | Activ-Step® penetration resistant – 1100N |
| Heat Resistance | HRO – 300°C |
| Insulation | HI (heat insulation) / CI (cold insulation) |
| Slip Rating | SRC |
| Upper Material | LWG Gold certified full grain waxy leather |
| Membrane | Activ-Tex® waterproof breathable membrane |
| Outsole | FORCE10® GR100 solid nitrile rubber |
| Scuff Protection | FORCE10® scuff cap |
| Additional Protection | IMPACTSHIELD™ internal digging plate |
| Stitching | R-ten™ abrasion resistant thread |
| Closure System | Lace with side zip |
| Sizes | UK 7–12 |
| Colour | Black |
| Use Environment | UK construction, utilities, infrastructure & heavy industry |
Application:
The Rock Fall Titanium (RF4500) Safety Boot is suitable for:
-
- Construction and civils
- Utilities and power networks
- Rail and infrastructure
- Groundworks and heavy site activity
- Warehousing and logistics
Environment suitability table:
| Environment | Suitability |
|---|---|
| General Construction | ✓✓✓ |
| Utilities & Infrastructure | ✓✓✓ |
| Wet Conditions | ✓✓✓ |
| Cold Conditions | ✓✓✓ |
| Hot Surfaces (Short Contact) | ✓✓ |
| Heavy Groundworks | ✓✓✓ |
| Foundry / Molten Metal | ✕ |
Usage Guide:
Before use
Inspect the outsole tread, toe cap, zip mechanism and stitching. Confirm correct fit and secure fastening before entering site.
During use
Use within S3 HI CI WR HRO SRC certified environments. Avoid chemical exposure beyond classification limits. Replace footwear if protective components show damage.
Cleaning and care
Remove mud and debris using warm water and a brush. Allow to dry naturally away from direct heat. Apply suitable leather nourishment to maintain upper condition.
What does S3 HI CI WR HRO SRC mean?
S3 includes 200J toe protection and penetration resistance. WR confirms waterproof construction. HRO confirms heat resistance to 300°C. SRC confirms maximum slip resistance. HI and CI confirm heat and cold insulation.
Is the RF4500 fully non-metallic?
Yes. It is 100% non-metallic and suitable for environments requiring metal-free footwear.
Does it have underfoot protection?
Yes. It includes an Activ-Step® penetration resistant midsole tested to 1100N and an IMPACTSHIELD™ internal digging plate.
Is this boot waterproof?
Yes. It incorporates an Activ-Tex® waterproof and breathable membrane.
Is it suitable for hot surfaces?
Yes. The FORCE10® outsole is HRO rated to 300°C for short contact.
Does the side zip affect safety compliance?
No. The side zip provides convenience while maintaining full S3 certification.
Is this suitable for utilities and rail work?
Yes. Its non-metallic construction and insulation ratings make it appropriate for utilities, infrastructure and rail environments.
Why buy safety footwear from CMT Group?
CMT Group supplies specification-led safety footwear supported by dependable UK stock control and structured procurement systems tailored to contractors and industrial buyers. The EDGE portal provides visibility, reporting and multi-site ordering control.
With UK fleet delivery and SiteHive.ai automated supply solutions, CMT Group helps reduce downtime, maintain compliance and streamline PPE procurement across projects.





