The Shark is a lace-free, polyurethane mens shoe. Easy to clean and even easier to wear. The shock-absorbing, anti-microbial and odor-resistant TRUComfort Insole keeps you feeling light and fresh on your feet. And the slip-resistant, non-marking PURGrip Outsole keeps you grounded regardless of any wet or oily spills. Attack your work day comfortably.