This design features a patent pending Genuine Grip® slip resistant rubber outsole with superior grip, and a side zipper for comfort wear. It has a shock absorbing polyurethane mid-sole. It also has a Walking On Air® removable polyurethane footbed with moisture absorbing Dri-Lex® fabric, moisture absorbing mesh lining, and oil & water resistant. This design is ideally suited for professionals who tend to stand all day on hard surfaces possibly with water or oil. It's perfect for nurses, doctors, chefs, teachers, and retail store or restaurant employees.