Caterpillar Munising S3 Wide-Fit Safety Boot with Composite Toe Cap

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Brand: Caterpillar | Model: Munising | SKU: 24717 | Safety Standard: EN ISO 20345:2011 S3 E FO WP HRO FO SRA

The Caterpillar Munising S3 Wide-Fit Safety Boot with Composite Toe Cap is engineered for demanding construction and industrial environments across the United Kingdom. Built with Caterpillar's renowned durability and certified to EN ISO 20345:2011, this boot delivers comprehensive protection including heat resistance up to 300°C, waterproof construction, and fuel oil resistance. The wide-fit design ensures workers with broader feet experience all-day comfort without pressure points or discomfort.

This robust safety boot excels in heavy-duty applications including construction sites, manufacturing facilities, metalworking, and outdoor industrial operations. Featuring a lightweight composite toe cap, penetration-resistant midsole, and superior slip resistance on ceramic and steel surfaces, the Munising provides complete foot protection. The waterproof membrane keeps feet dry in wet conditions, while the heat-resistant outsole protects against hot surfaces and molten metal splash.

Designed specifically for workers requiring wide-fit footwear, the Caterpillar Munising prevents the pinching and discomfort that standard boots often cause during extended shifts. The generous toe box and wider construction accommodate broader feet whilst maintaining the structural integrity and protection required for professional safety footwear. Customer feedback confirms the Munising runs true to size in its wide-fit specification.

Key Features

Feature Description
Wide-Fit Design Extra room for workplace comfort, specifically designed for broader feet
Composite Toe Cap Lightweight safety protection tested to 200 Joules impact and 15,000 Newtons compression
Waterproof Construction Fully waterproof membrane keeps feet dry in wet working conditions
Heat Resistant Outsole HRO rated outsole provides resistance to contact heat up to 300°C
Fuel Oil Resistant FO rated outsole resists degradation from fuel oils and petroleum products
Penetration Resistant Midsole Steel midsole protects against sharp objects penetrating through the sole
Slip Resistant Outsole SRA rated for superior grip on ceramic tile with cleaning agent
Energy Absorbing Heel Absorbs impact energy of 20 Joules to reduce fatigue and strain
Antistatic Protection Dissipates static electricity to protect sensitive equipment and reduce shock risk
Full-Grain Leather Upper Durable premium leather construction for long-lasting performance
Padded Collar and Tongue Enhanced comfort padding reduces pressure and prevents rubbing
Lace-Up Closure Secure adjustable fit for optimal support and stability


Technical Specifications

  • Safety Standard: EN ISO 20345:2011
  • Safety Ratings: S3 E FO WP HRO FO SRA
  • Model: Munising
  • SKU: 24717
  • Brand: Caterpillar
  • Toe Protection: Composite Toe Cap (200 Joules impact, 15,000 Newtons compression)
  • Fit Type: Wide-Fit (designed for broader feet)
  • Upper Material: Full-grain leather
  • Waterproofing: Waterproof membrane construction
  • Heat Resistance: HRO rated to 300°C contact heat
  • Sole Resistance: Fuel oil resistant (FO), slip resistant (SRA)
  • Midsole Protection: Penetration resistant steel midsole (1100 Newtons)
  • Energy Absorption: 20 Joules heel energy absorption
  • Suitable Industries: Construction, Manufacturing, Metalworking, Heavy Industry, Outdoor Industrial Operations

Frequently Asked Questions

What does wide-fit mean for the Caterpillar Munising safety boot?

The wide-fit design of the Caterpillar Munising provides extra room throughout the boot, specifically in the toe box and midfoot areas. This construction is ideal for workers with broader feet who experience discomfort, pinching, or pressure points in standard-width safety footwear. The generous fit prevents the cramping and pain that can occur during long shifts whilst maintaining full safety protection and support.

Is the Caterpillar Munising fully waterproof?

Yes, the Caterpillar Munising features a waterproof membrane construction that keeps feet completely dry in wet working conditions. This makes it suitable for outdoor construction sites, environments with water exposure, and applications where workers encounter rain, puddles, or damp surfaces. The waterproof rating ensures reliable protection throughout the working day.

What does the HRO rating mean on this safety boot?

HRO (Heat Resistant Outsole) means the sole is tested and certified to resist contact heat up to 300°C. This protection is essential for workers in metalworking, welding, foundries, and construction environments where hot surfaces, molten metal splash, or high-temperature materials are present. The HRO rating ensures the sole will not melt, degrade, or lose integrity when exposed to extreme heat.

Does the Caterpillar Munising run true to size?

Yes, customer feedback and professional testing confirm the Caterpillar Munising runs true to size in its wide-fit specification. Workers should order their normal UK shoe size in the wide-fit version. The boot is designed to provide the extra width needed for broader feet whilst maintaining accurate length sizing. If you normally wear standard-width footwear comfortably, you may find this wide-fit design too roomy.

What safety features does the S3 rating include?

The S3 safety rating on the Caterpillar Munising includes comprehensive protection: a composite toe cap tested to 200 Joules impact and 15,000 Newtons compression, an antistatic sole, energy-absorbing heel with 20 Joules absorption, water-resistant upper, and a penetration-resistant steel midsole tested to 1100 Newtons. Additionally, this boot includes HRO heat resistance to 300°C, fuel oil resistance (FO), and SRA slip resistance, making it suitable for the most demanding industrial environments across the United Kingdom.