These work pants feature a reinforced double-knee construction for extra durability, so you can rough them up however you please.
Heavy Duty Duck Canvas Double Knee Pants, Double-Front Pants
Mens Work Pants Dickies Loose Fit Double Knee Work Pants Size 32/30
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Dickies. Loose Fit Double Knee Twill Work Pants. Black.
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Tough-as-nails, double-knee adventure pants built to go from the crag to the office without breaking a sweat, Built for everyday wear, the Rover
Rover Double-Knee Work Pant - Slim