What are the characteristics of bullet proof vests?

Bulletproof vests, also known as ballistic vests, are designed to absorb and disperse the energy of projectiles, providing protection to the wearer. They are typically made from layers of high-strength fibers such as Kevlar or Twaron, which are lightweight yet strong. The vests are classified into different levels based on their ability to stop various types of ammunition, with higher levels offering greater protection. Additional features may include moisture-wicking materials for comfort, modular designs for added accessories, and camouflage options for tactical use.