For fresher, fatigue-free feet. The bright white Corona is the higher ankle boot version of the Cas. Its washable microfiber upper is treated to repel all types of dirt, germs and bacteria. The Corona is a highly breathable, comfortable shoe for all day use, specifically designed for almost any job in the food industry. Energy-return soles prevent fatigue and keep the wearer fresh, alert, sure-footed and stable on their feet, even with liquids on the floor.