A barrier apron is waterproof and great for the lab. It comes with long sleeves and is made of polyethylene. The impervious barrier gown combines a layer of polyethylene over the spun-bonded polypropylene for a strong barrier against hostile liquids and airborne contaminants. It is tear resistant, and has strong seams. The isolation gown is made from fluid-resistant, spun-bonded polypropylene that is air permeable for body ventilation. It has a 3" nylon cuff for a comfortable fit. The economy isolation gown is like the isolation gown, but has elastic at the wrist instead of the nylon cuffs. The lab coats are made of 1.25-oz. polypropylene. They come with elastic at the wrist and snaps down the front.