Men's Birkenstock Boston Pro Slip-Resistant Clogs Designed for long hours on the move, the Birkenstock Boston Pro Slip-Resistant Clogs combine classic comfort with modern workplace performance. With a fluid-resistant leather upper, certified slip-resistant outsole, and ergonomically contoured cork-latex footbed, these clogs provide the support and durability professionals need. Whether you're in healthcare, hospitality, or any setting that demands dependable footwear, the Boston Pro delivers all-day wearability and timeless style.