Made of flexible, stretchable expanded nitrile rubber, the certified Pro-Armor G features a perforated structure and a functional pattern that make it extremely comfortable. Ergonomics Dynamic thickness Anatomical shape Longitudinal stretch & bending Main Materials Expanded nitrile rubber Performance Shock Back protector certified to Cat. II - EN 1621.2/2014 lev. 2 Funcional pattern Temperature Perforated structure