King Toe® - 3548
Men's 8-inch Insulated, Waterproof CSA Safety Toe Boots The Red Wing King Toe 3548 is a rugged, medium-duty work boot engineered for professionals who demand comfort, protection, and performance in challenging conditions. Built with a non-metallic safety toe that meets ASTM F2413 standards, this 8-inch boot provides dependable impact and compression resistance while offering 44% more toe room than standard work boots for enhanced all-day comfort. Featuring Red Wing’s advanced three-layer waterproofing system and premium full-grain leather, this boot keeps feet dry on wet job sites, while 800 g of 3M™ Thinsulate™ Ultra insulation helps retain heat in cold environments. The puncture-resistant Swen-Flex® insole and Vibram® Galactic Fire and Ice outsole deliver best-in-class slip, oil, gas, and chemical resistance, making the King Toe 3548 an ideal choice for construction, utility, transportation, and light-to-medium work applications.
Key Features
- Non-metallic safety toe with ASTM and CSA protective standards
- 44% more toe room for extended comfort
- 800 g 3M™ Thinsulate™ Ultra insulation for warmth
- Three-layer Red Wing waterproofing system
- Puncture-resistant Swen-Flex® insole
- Vibram® Galactic Fire and Ice outsole with slip, oil, gas & chemical resistance

