Chippewa Safety Toe boot styles are compliant with ASTM F2413-05 requirements for protective footwear. Chippewa Boots manufactures high quality safety footwear that meets or exceeds the highest ASTM requirements. These 8" work boots will keep your feet warm with 400 grams of Thinsulate Ultra insulation. This insulation is lightweight, breathable, and moisture-resistant. It provides warmth and comfort, yet it's still thin enough to allow complete freedom of movement. The exclusive Vibram compound provides maximum traction on wet/dry surfaces and various terrain.