Halyard Health Control Cover Gown, Universal Size (26″ Chest Width, 48″ Length, 22″ Sleeve), Yellow, Elastic Cuff, AAMI Level 2 Protection. Our Isolation Gown portfolio provides protection based on AAMI guidelines, the most widely accepted system of classification, determined by liquid barrier performance, for protective apparel and surgical drapes. Three levels of protection allow you to select the right gown for the procedure at the right price