Comfortable Confidence Clothing: International Enviroguard Disposable Ultra Lightweight Coveralls, Blue (Size 4XL, Case Of 25) Suit Yourself - Product Selection Tool These navy-blue polypropylene coveralls comfortably fit over work clothes without restricting movement. Disposable polypropylene coveralls are a low-cost option for protection against dirt, grime, and particulates in non-hazardous environments.