D3O® are a British company making slimline and ergonomic armour which achieves the highest levels of CE protection. It is now used by top brands such as Belstaff, but is also ideal for fitting into jackets from armour ready brands like RSD or Rokker. Soft under normal conditions, the armour is flexible and slim. It locks together absorbing the energy on impact, preventing the force from reaching you. We recommend fitting D3O® armour where possible. Thankfully, most manufacturers agree and in recent years D3O® has made its way into most leading brands of motorcycle clothing.