In 1969 Scientists created a new light weighted bullet-proof jackets. These jackets can stop a 30mm calibre bullet. It is light weighted and easy to wear. After that 2015 our scientists created the new bulletproof jackets by replacing boron Carbide fibres. These fibres are very strong and flexible. Nowadays Kevlar based armours are made for use these armours are ten times stronger than the steel. It is flexible. This armour spreads the impact of the bullet on the larger area that shows you bulletproof. Scientists are doing research on making armours lightweight and easy to use. And another important fact is scientist planned to make armour by a spider web technology.