DuPont™ Tyvek® 400 D. Coverall. Comfort Fit Design. Respirator Fit Hood. Elastic Wrists and Ankles. Elastic Waist. Surged Seams. White DuPont™ Tyvek® 400 Front. Blue DuPont™ ProShield® 10 Back. DuPont™ Tyvek® 400 D garments combine the protection, durability and comfort of DuPont™ Tyvek® fabric on the front and the comfort, softness and breathability of DuPont™ ProShield® 10 fabric on the back. The DuPont™ Tyvek® 400 D garments are suitable for applications where comfort requirements are combined with limited protective requirements for frontal exposures. Garments are available in a variety of styles. Applications include fiberglass and composite manufacturing, wind turbines, boat construction and repair, remediation and maintenance.