DuPont Tyvek 500 High Visibility Disposable Coverall Orange DuPont Tyvek 500 Hi-Vis Orange is a Collared coverall available in fluorescent orange with silver grey reflective bands for day and night visibility. The garments are mainly composed of flash spun polyethylene, providing an ideal balance of protection, durability and comfort. Thanks to their nonwoven structure, they are permeable to both air and water vapour, yet repel water-based liquids and aerosols. They offer an excellent barrier against fine particles and fibres, are ultra-low linting and antistatically treated on the inside