West Chester 3816 Posiwear pants use patented SMMMS technology. It's the only SMS product in the market with five layers of protection. The disposable pants provide a high level of breathability and protection against dry particulates and water-based light liquid sprays and splashes. Latex-free elastic waistband allows for comfort. The serged seams make it suitable for industrial manufacturing, paper industry, food processing, or heavy dust environments. 50/EA per Case.