Viking VW88 Ultimate Construction Boot. CSA Class #1 steel toe and plate. CSA Omega electric shock resistant. CSA Class 1 / ASTM. CE 0321 Chainsaw Cut Protection Class 2 provides superior metatarsal and shin Impact protection against hazards like Rebar shin impact. Nitrile Butadiene Rubber shuts out any corrosives, like cement. Resistant to Cement, Chemicals, Acids, Animal Fats, Fish oils and Ketones. 97% retention of abrasive, tensile and chemical resistance strength even after 70 hours of exposure to cement. CC5 ergonomic insole included. Achilles tendon & ankle protection. Steel shank and air Cushioned sole pockets. Available in sizes 6-14. Sold as pairs.