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Sole puncture protection with a Grade 1 protective toe cap. For industrial work environments, especially where sharp objects are present.
Electric-shock protective footwear. For industrial work environments where accidental contact with live electrical conductors can occur
Regular
Wide
Extra wide
General construction, manufacturing, and job sites where the user is exposed to a wider range of work conditions and equipment.
Available exclusively at Mister Safety Shoes, the Timberland PRO Resistor 6″ offers a classic work boot design featuring a composite safety toe and composite puncture-resistant plate, making it completely metal-free and ideal for worksites with metal detectors or strict safety protocols.
Built from durable leather with a padded collar and wide comfort fit, this work boot is designed for long hours on the job. Timberland’s Dynamic Anti-Fatigue Technology footbed absorbs shock and returns energy to keep your feet feeling fresh through every shift. The boot is also electric shock resistant (ESR) for added safety in electrical environments.
The slip, oil, and abrasion-resistant outsole grips reliably on both indoor and outdoor surfaces. Whether you’re in warehousing, trades, or light construction, the Resistor work boot offers reliable performance in a classic 6” profile that feels as good as it looks.
Perfect for anyone searching for lightweight safety shoes, mens work boots, or Timberland PRO safety shoes in Canada, the Resistor 90660 is a no-compromise choice for comfort, safety, and durability.
| STYLE | 90660 | |
| Sole: | Timberland PRO® abrasion, slip and oil-resistant outsole with a lightweight polyurethane midsole for flexibility and comfort | |
| Upper: | Premium leather upper | |
| Lining/Insulation: | Mesh lining with Agion® antimicrobial treatment for odor control & comfort | |
| Footbed: | Dual-density Dynamic Anti-Fatigue Technology footbed absorbs shock and returns energy at key zones of the foot while providing enhanced moisture management for all-day comfort | |
| CSA: | CSA grade 1 Composite Toe, Composite Plate, Electric Shock Resistant (ESR) |
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| Height: | 6" | |
| Size Range: | 7-11,12,13,14,15 | |
| Fit: | Wide |
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| Work Conditions: | Medium Duty | |
Did you know that when required to wear protective footwear, you have options beyond traditional steel toe shoes or steel toe boots? Composite toe safety shoes & work boots are an excellent alternative. Composite toe safety shoes are often lighter than steel toe shoes and provide the same levels of protection.
To find out more about the differences, read our blog on What are the Differences Between Composite Toe, Aluminum Toe and Steel Toe Safety Shoes and Boots.
Additional Blogs
Looking for the right CSA approved symbol for safety shoes or work boots?
What you need to know about slip resistant safety footwear
Work on Concrete? Top 4 Safety Footwear Features You Need
Frequently Asked Questions
What does 'medium-duty work environment' mean for this men's work boot?
Medium-duty environments include jobs like warehousing, light construction, electrical work, and general trades, where reliable protection is needed without the bulk of heavy industrial steel toe boots or shoes. The Timberland PRO Resistor 90660 work boot is built for these conditions, offering lightweight safety shoes with a composite toe, perfect for long hours in active, moderately demanding settings.
Are Timberland PRO Resistor boots good for electrical work?
Yes. They are ESR-rated (Electric Shock Resistant), which means the soles provide a secondary level of protection against electrical shock hazards. This makes them suitable for electricians or anyone working around live electrical equipment.
Is the Timberland Resistor work boot waterproof?
The Resistor 6" is not specifically a waterproof model (it has a premium leather upper but no waterproof membrane). It will hold up in light rain, but for frequent wet conditions, consider a dedicated waterproof boot like the Timberland PRO Boondock 6" Composite Toe Work Boot
Fits Large means you may consider selecting a 1/2 or a full size smaller.
Fits Small means you may consider selecting a 1/2 or a full size larger.
If you aren’t 100% satisfied with your purchase you can return your unused or unworn footwear or clothing to any of our stores up to 100 days after the date of purchase as long as you have the original receipt. Unfortunately, we don’t accept copies of receipts.
If you don’t have the original receipt, and we are able to verify your Mister Safety Shoes purchase, we will gladly offer an exchange or store credit. Refunds DO require the original receipt.
What if it’s a manufacturer’s defect? We stand behind all the products we sell. That’s why you can exchange any manufacturer defective footwear up to 6 months from the date of purchase.
Good to know: Refunds are made in the same form of the original payment method you used, so if you paid with a credit or debit card, we’ll refund the purchase on your credit or debit card.
If you aren’t 100% satisfied with your purchase, you can return your unused or unworn footwear or clothing for a full refund or exchange within 100 days of you receiving your shoes. We offer FREE returns for orders over $125 (not including discounts). Please contact our customer service department to request a return shipping label.
For online orders under $125, in extreme locations noted above, we do not offer free returns.
You also have the option of returning your online purchase at any one of our store locations.
There are a few simple steps to follow:
For a limited time, we are offering free shipping within most regions of Canada for online orders over $125 (not including discounts).
Please note there are a number of geographic locations within Canada that do not qualify for free shipping. These locations include: Prince Edward Island, Newfoundland, Yukon, North West Territories and Nunavat. Shipping fees are based on location and weight of the purchase. Please contact our Mister Safety Shoes Customer Service team for a shipping quote: customerservice@mistersafetyshoes.com
We do not ship to the U.S. at this time.
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