Men's Birkenstock QS700 Steel Toe Work Boots The Birkenstock QS 700 Steel Toe Safety Shoe combines professional-grade protection with the comfort Birkenstock is known for. Built to meet EN ISO 20345:2011 S3 safety standards, this ankle-high lace-up shoe features a 200-joule steel toe with a scratch-resistant cap for forefoot protection. The removable, anatomically shaped cork-microfiber footbed helps reduce strain through long hours on the job, while the penetration-resistant, nonslip, oil- and petrol-resistant outsole delivers dependable traction in demanding environments. Antistatic protection and a water-resistant leather upper add functional durability to this work-ready design.