Body armor is protective clothing designed to absorb or deflect physical attacks. It is commonly used by military personnel, law enforcement officers, and individuals in high-risk professions to protect against bullets, knife stabs, and other threats.

Body armor works by distributing the energy of a forceful impact across a wide area. For ballistic protection, it often consists of layers of strong fibers that catch and deform a bullet, mushrooming it into a dish shape, and spreading the force over a larger area to stop penetration.

Body armor is categorized into different levels by the National Institute of Justice (NIJ), ranging from Level IIA (which offers the least protection) to Level IV (which offers protection against high-caliber rifle shots). Each level is designed to protect against specific types of threats.

Yes, in most countries, including the United States, civilians can legally purchase and wear body armor. However, there are restrictions in some areas, and it's important to check local laws before purchasing.

Choosing the right body armor depends on the level of threat you're likely to face, the weight of the armor, mobility requirements, and the climate you'll be operating in. It's crucial to balance protection levels with the need for mobility and comfort.

Proper fit is crucial for body armor to provide maximum protection. It should cover vital organs without restricting movement. It's recommended to get professionally fitted and to regularly check the fit, as body changes can affect how armor protects you.

The lifespan of body armor varies based on the material, usage, and care. Manufacturers typically recommend replacing body armor every five years. However, it should be inspected regularly for signs of wear and damage, and replaced immediately if compromised.

Not all body armor is designed to stop knife attacks. Stab-resistant armor is specifically designed to protect against knives and other sharp objects. This type of armor is graded differently from ballistic armor and is essential for those at risk of stab attacks.

The weight of body armor varies based on the protection level and materials used. Advances in technology have led to the development of lighter materials that still offer high levels of protection, enhancing wearability for extended periods.

Proper care can extend the life of body armor. This includes storing it flat or on a hanger, cleaning it according to the manufacturer's instructions, and inspecting it regularly for damage. Avoid exposing it to extreme temperatures or moisture, which can degrade the materials.