Blaklader 2890 Navy Blue/Hi-Vis Yellow Arc Flash & Fire Retardant Apc 2 Multinorm Inherent Bib TrouserBib and brace trousers made from inherently flame resistant material, meaning the flame protection is built into the fibres structure. In the lined areas, the trousers are approved for the higher arc protection class APC 2. The trousers are soft and flexible, with external kneepad pockets reinforced with CORDURA Kevlar Protal material. These dirt , and water repellent trousers feature smart pocket solutions and elastic braces for enhanced comfort.