Piece of body armor which resists knife attacks

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For the type of buoyancy compensator used in scuba diving, see stab jacket

An armed British police officer wearing a ballistic vest Stab-Protective Body Armor, Concealable (CSPBA)

A stab vest or stab proof vest is a reinforced piece of body armor, worn under or over other items of clothing, which is designed to resist knife attacks to the chest, back and sides.

Stab vests are different from bulletproof vests, which offer protection against firearms but are ineffective against stabbing attacks. They are constructed using high-strength synthetic fibers with a tighter weave than bulletproof vests and can be reinforced with other laminates.[1][2][3]

Use

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Stab proof vests are standard issue to police officers in both the United Kingdom and New Zealand.[4] They are also commonly worn by paramedics, security staff, traffic wardens, environmental wardens, customs officers, immigration officers, bailiffs, cash in transit officers, door supervisors/bouncers, or anyone who else may be under threat.[citation needed]

Bulletproof vests are more commonly used by police in countries with greater firearms ownership, such as the United States and Canada; but dual-purpose armor plates that protect against both stab and firearms attacks are fairly widely available for police and also security applications.[citation needed]

Standards

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"Ice pick" tests

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In the mid-s the state of California Department of Corrections issued a requirement for a body armor using a commercial ice pick as the test penetrator. The test method attempted to simulate the capacity of a human attacker to deliver impact energy with their upper body. As was later shown, this test overstated the capacity of human attackers. The test used a drop mass or sabot that carried the ice pick. Using gravitational force, the height of the drop mass above the vest was proportional to the impact energy. This test specified 109 joules (81 ft·lbf) of energy and a 7.3 kg (16 lb) drop mass with a drop height of 153 cm (60 in) and an ice pick with a 4 mm (0.16 in) diameter with a sharp tip with a 5.4 m/s (18 ft/s) terminal velocity in the test. The California standard did not include knife or cutting edge weapons in the test protocol. In this early phase only titanium and steel plate offerings were successful in addressing this requirement.

These textile materials do not have equal performance with cutting-edge threats and these certifications were only with ice picks and were not tested with knives.

United Kingdom

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The Police Scientific Development Branch (PSDB) work studied the type of weapons that are commonly used in stabbing attacks and the levels of impact energy fit young men are capable of generating during such an attack. The study resulted in minimum performance ratings for armour used in the UK, as defined under PSDB publication 6/99. The PSDB standard was replaced in with the current Home Office Scientific Development Branch (HOSDB) publication No. 39/07/C which governs stab resistant body armor performance in the UK. This updated standard introduced a more stringent testing procedure with more drops than the previous standard plus the introduction of the P1/B Blade which is found to be more aggressive that the older P1/A Blade.[5]

In the UK there are no standalone ratings for spike resistance. For stab resistant armor to carry a spike resistance (SP) rating in the UK, it must first pass minimum knife resistance (KR) performance tests.

United States

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Contact us to discuss your requirements of Stab-Proof Vest. Our experienced sales team can help you identify the options that best suit your needs.

In the US, the National Institute of Justice (NIJ) has established a stab-resistant body armor test standard (NIJ STD .00),[6] based on the work in the UK, which defines two threat types: spike and edged blade.

Manufacturers of body armor can voluntarily submit armor models for compliance testing through the National Law Enforcement and Corrections Technology Center in Rockville, Maryland. Through the program, manufacturers certify that their armor will defeat the specified threat at one of three threat levels. Threat levels 1, 2 and 3 are based on impact energies of 24 J (18 ft&#;lbf), 33 J (24 ft&#;lbf), and 43 J (32 ft&#;lbf) joules respectively.

See also

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References

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This article incorporates work from https://peosoldier.army.mil/newpeo/Equipment/Temp.asp?id=SPE_CSPBA, which is in the public domain as it is a work of the United States Military.

7 Things You Should Know Before You Buy

1. No bulletproof vest is 100% stab-proof, regardless of the manufacturer

The vests you find in Elite Armor's webshop with EA-Tex implants are stab-proof to the extent that they will protect against knife stabs in 95% of cases. In fact, if you wear a vest from Elite Armor, you will be better protected than 41.4% of American police officers! You can read more about it here.

When we say that no vest is 100% stab-proof, it&#;s because you could potentially penetrate the vest if you have a "real" razor-sharp weapon that can pierce through the vest, as it is so thin that it can break the otherwise tight fabric.

In our test videos, you can see how our vests handle knife stabs from a Stanley knife, a combat knife, and a survival knife - see the video below.

2. This is how the projectiles are absorbed

The implants in a bulletproof vest are extremely strong, cross-woven fibers. The fibers stop projectiles in the same way that a tennis net stops a tennis ball. The network of fibers distorts the projectile, which reduces the projectile's speed and transfers the energy from the projectile into the implant. When you buy a bulletproof vest from Elite Armor, you can choose fibers made from EA-TEX or Twaron. Regardless of which fibers you choose, you will receive protection at the NIJ IIIA (3A) level.

Buy bulletproof vest here

3. All gunshots are (still) deadly

Even if you wear a bulletproof vest, you should never forget that gunshots can still kill. A bulletproof vest only protects your torso, so the rest of your body is still exposed. Additionally, a bulletproof vest does not protect against ALL weapons. A vest at protection level IIIA protects against .44 Magnum and .9 mm, but not against automatic rifles, for example.

4. Durability is limited

A bulletproof vest cannot protect you forever. Each time a bulletproof vest absorbs a projectile, the vest weakens. As a rule of thumb, you can expect that a bulletproof vest can absorb 5 projectiles before you should replace it.
Additionally, a bulletproof vest has a "shelf life." If you choose the fiber type EA-TEX, there is a durability guarantee of 5 years, and if you choose Twaron, there is a durability guarantee of 10 years. This means that you should replace your vest after 5 and 10 years, respectively.

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5. Wash the cover for your bulletproof vest

You should have at least two covers for your bulletproof vest. If you have an extra cover, you can use the vest even when your original cover is in the wash.
A clean cover is important to ensure that the implant is not exposed to dirt, which can shorten the implant's lifespan. By keeping your cover clean, you also maintain the warranty for 5 or 10 years.

6. Take care of your bulletproof vest

A bulletproof vest should never be left in direct sunlight or under UV lighting, as the ballistic properties can degrade from UV radiation and heat. The implants should therefore never be bleached or cleaned with chemicals, as bleach and other chemicals break down the synthetic fibers.

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7. NO bulletproof vest protects against AK47

We often get questions about the resistance of our vests to shots from an AK47. No vest can withstand projectiles from such a caliber without a special hard armor plate/trauma plate - you can buy a trauma plate here.
 

For more information, please visit Bulletproof Stab Proof Vest.