Mongrel 561 Side Zip Safety Boots - STONE

Discover the Mongrel 561 Heat Resistant Safety Boot in Stone – Built for the Toughest Jobs

When the job gets seriously hot, you need a boot that can take it. The Mongrel 561 Side Zip Safety Boot in Stone (Product Code: 516060) is Mongrel's heavy-duty heat resistant safety boot, designed and built in Australia for the most demanding work environments. With a Vibram® sole rated to withstand heat up to 300°C, a higher cut for added protection, and a steel toe cap for maximum impact resistance, the 561 is the ultimate choice for tradespeople who refuse to compromise.

Our Price Promise

We will not be beaten on price on any authentic Mongrel product. If you find a better price anywhere on the internet — or receive a quotation elsewhere — let us know and we'll match it. Buy with complete confidence.

Heat Resistant Vibram® Sole – Rated to 300°C

The standout feature of the 561 is its world-class Vibram® heat resistant outsole, capable of withstanding extreme temperatures up to 300°C. Vibram is globally recognised as the benchmark in performance rubber soling — trusted by professionals working in some of the hottest, harshest environments on the planet. Whether you're walking across freshly laid tarmac, working close to furnaces, welding, or operating in foundries and metal shops, the 561 keeps your feet protected where standard work boots would simply melt away.

Higher Cut Design for Extra Protection

The 561 features a higher cut design that extends further up the ankle, providing additional protection from sparks, splashes, debris, and impact. This is the boot you want when you're working in environments where hazards aren't just at ground level. The supportive ankle structure also helps reduce the risk of twists and sprains on uneven terrain — a vital feature for outdoor work and rough sites.

Full-Grain Leather Upper – Built to Last

The 561 is constructed using premium full-grain leather, the most durable and longest-lasting grade of leather available. Full-grain leather not only stands up to the abuse of heavy-duty work but actually improves with age, developing character and moulding to the shape of your feet over time. Combined with the side zip design for quick on/off convenience, this is a boot built for both performance and practicality.

OrthoTec Poron® Footbed – All-Day Comfort

Long shifts in heavy boots can take their toll — but not with the 561. The OrthoTec Poron® footbed delivers superior shock absorption and anatomical arch support, helping reduce fatigue even during the longest, hardest days. Poron® is a high-performance cushioning material trusted by orthopaedic specialists for its ability to absorb impact while maintaining support over time — meaning your boots stay comfortable, day after day, year after year.

Perfect for the Toughest UK Trades

The 561 is built for workers who face the most demanding conditions:

• Farmers and agricultural workers – Tough enough for any terrain or task
• Miners – Rugged protection where it matters most
• Tradespeople and general construction – Versatile, durable, and certified
• Metalworkers and welders – Heat resistance where standard boots fail
• Road workers and tarmac crews – Vibram® sole handles freshly laid surfaces
• Foundry and furnace workers – Reliable protection in extreme heat

If your work environment includes heat, sparks, hot surfaces, or any kind of thermal hazard, the 561 is the boot for you.

Crafted in Australia – Made for Hard Work

Mongrel Boots is a proud multi-generational family business that has been hand-crafting quality footwear in Australia since the 1930s. Every pair of 561 boots is Made in Australia, using premium materials and time-tested construction methods. As an authorised stockist, we've personally visited the Mongrel factory in Sydney and seen the dedication and craftsmanship that goes into every pair.

Safety Certifications – EN ISO 20345:2022 S1 FO SC SR

The Mongrel 561 is certified to the latest European safety standard, EN ISO 20345:2022 S1 FO SC SR. In plain English, that means:

• Steel toe cap – Maximum protection against impact and compression
• Anti-static – Dissipates static electricity for safer work environments
• Energy-absorbing heel – Reduces impact fatigue throughout the day
• Fuel and oil resistant sole (FO) – Withstands workplace contaminants
• Extra scuff protection (SC) – Reinforced protection in high-wear areas
• Top-grade slip resistance (SR) – Reliable grip on wet and oily surfaces

Key Features

• Heat Resistant Vibram® Outsole – Withstands up to 300°C
• Steel Toe Cap – Maximum impact and compression protection
• Higher Cut Design – Extra ankle protection and support
• Premium Full-Grain Leather Upper – Long-lasting durability
• Side Zip Design – Quick and easy on/off
• OrthoTec Poron® Footbed – Superior shock absorption and arch support
• Fuel & Oil Resistant Construction – Built for industrial environments
• Anti-Static & Energy-Absorbing Heel – Reduces fatigue during long shifts
• Stone Colour Finish – Distinctive alternative to standard black or brown
• EN ISO 20345:2022 S1 FO SC SR Certified – Fully compliant with current safety standards
• Made in Australia – Crafted using nearly a century of bootmaking heritage
• 6-Month Guarantee – Complete peace of mind with every pair

Why Choose the Mongrel 561 in Stone?

The stone colourway gives the 561 a distinctive, modern look that stands apart from the typical sea of black and brown safety boots — without compromising on the serious protection underneath. Combined with the heat resistant Vibram® sole, full-grain leather, and OrthoTec Poron® comfort system, this is a boot that delivers genuine premium performance in every way. For workers facing extreme heat, this is one of the most capable safety boots money can buy.

Order Your Mongrel 561 Stone Safety Boots Today

It's time to upgrade to a safety boot that can truly handle the heat. Experience the unbeatable combination of Vibram® heat resistance, Australian craftsmanship, all-day OrthoTec Poron® comfort, and certified protection — all backed by our price match promise and a 6-month guarantee.

You won't be disappointed.

Product Specifications:

• Product Code: 516060
• Colour: Stone
• Type: Heat Resistant Safety Boot
• Style: Side Zip, Higher Cut
• Toe Cap: Steel
• Upper: Premium Full-Grain Leather
• Sole: Vibram® Heat Resistant (up to 300°C)
• Footbed: OrthoTec Poron®
• Certification: EN ISO 20345:2022 S1 FO SC SR
• Brand: Mongrel Boots
• Country of Origin: Australia
• Guarantee: 6 Months