Caterpillar S3 Spiro Wide-Fitting Safety Work Boot with Steel Toe Cap | SAVE 30%
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Brand: CATERPILLAR | Model: Spiro | SKU: 35078 | Safety Standard: EN ISO 20345:2011 S3 HRO SRC
The Caterpillar S3 Spiro Wide-Fitting Safety Work Boot with Steel Toe Cap delivers rugged protection and exceptional comfort for demanding industrial environments. Engineered with Caterpillar's renowned durability and certified to EN ISO 20345:2011 S3 HRO SRC, this safety boot combines professional-grade construction with all-day wearability for workers across the United Kingdom.
Designed for construction sites, heavy industry, manufacturing, and outdoor work environments, the Spiro safety boot features a steel toe cap, penetration-resistant midsole, and heat-resistant outsole rated to 300°C. The robust full-grain leather upper provides durability and protection, while the slip-resistant SRC-rated outsole ensures superior traction on both wet ceramic and steel surfaces. Whether you're working in foundries, welding environments, or heavy construction, the Caterpillar Spiro delivers dependable protection against workplace hazards.
Built as a wide-fitting safety boot, the Spiro is ideal for workers with broader feet who need extra room to prevent discomfort, pinching, and pressure points during extended shifts. The generous fit accommodates foot swelling throughout the workday, ensuring consistent comfort from start to finish. Customer feedback and professional testing confirm the Caterpillar Spiro runs true to size in its wide-fit specification, making it a trusted choice for workers requiring both certified protection and comfortable all-day wear.
Key Features
| Feature | Description |
|---|---|
| Wide-Fitting | Extra room for workplace comfort, ideal for broader feet |
| Steel Toe Cap | Heavy-duty toe protection tested to 200 Joules impact resistance |
| Penetration-Resistant Midsole | Steel midsole protects against sharp objects penetrating from below |
| Heat-Resistant Outsole | HRO-rated sole withstands contact heat up to 300°C |
| Slip-Resistant Outsole | SRC-rated grip on wet ceramic and steel surfaces |
| Full-Grain Leather Upper | Durable leather construction for long-lasting protection |
| Water-Resistant Upper | Treated leather resists water penetration in wet conditions |
| Padded Collar | Cushioned ankle support for all-day comfort |
| Energy-Absorbing Heel | Shock-absorbing heel reduces impact and fatigue |
| Antistatic Protection | Dissipates static electricity for safe operation |
| Durable Construction | Caterpillar quality built to withstand demanding work environments |
| Lace-Up Design | Secure fit with adjustable lacing system |
Technical Specifications
- Safety Standard: EN ISO 20345:2011
- Safety Ratings: S3 HRO SRC
- Model: Spiro
- SKU: 35078
- Toe Protection: Steel Toe Cap (200 Joules impact resistance)
- Midsole Protection: Steel penetration-resistant midsole (1100 Newtons)
- Heat Resistance: HRO-rated outsole (300°C contact heat resistance)
- Slip Resistance: SRC (passes both SRA and SRB tests)
- Upper Material: Full-grain leather with water-resistant treatment
- Fit Type: Wide-fitting for broader feet
- Suitable Industries: Construction, Heavy Industry, Manufacturing, Foundry, Welding, Outdoor Work
Frequently Asked Questions
What does the S3 HRO SRC safety rating mean?
The S3 rating indicates this boot provides toe protection tested to 200 Joules, features a penetration-resistant midsole, has a water-resistant upper, and includes antistatic and energy-absorbing properties. HRO means the outsole resists contact heat up to 300°C, making it suitable for hot working environments like foundries and welding operations. SRC confirms the boot passes slip-resistance tests on both wet ceramic (SRA) and steel with glycerol (SRB) surfaces.
What is a wide-fitting safety boot?
A wide-fitting safety boot provides extra room across the width of the foot, designed specifically for workers with broader feet, bunions, or those who experience discomfort in standard-width footwear. This prevents pinching, pressure points, and discomfort during long shifts. The Caterpillar Spiro's wide fit accommodates foot swelling throughout the workday while maintaining certified safety protection.
Does the Caterpillar Spiro run true to size?
Yes, customer feedback and professional testing confirm the Caterpillar Spiro runs true to size in its wide-fit specification. Workers should order their regular UK shoe size for the best fit. The wide fitting provides extra room across the width while maintaining standard length sizing.
Is the Caterpillar Spiro suitable for hot working environments?
Yes, the Caterpillar Spiro features HRO (Heat Resistant Outsole) certification, meaning the sole can withstand contact heat up to 300°C. This makes it ideal for foundry work, welding environments, and other hot working conditions where footwear may come into contact with heated surfaces.
What is the difference between a steel toe cap and a composite toe cap?
A steel toe cap provides heavy-duty protection using traditional steel construction, offering maximum impact resistance and durability for demanding industrial environments. While slightly heavier than composite alternatives, steel toe caps are preferred in heavy industry, construction, and environments where maximum protection is required. The Caterpillar Spiro's steel toe cap is tested to 200 Joules impact resistance, meeting EN ISO 20345:2011 safety standards.