Here is some advice for buying a bulletproof vest.  Choose your protection level.  Handguns or Rifle: Handguns: 89% of gun crime happens with handguns, and level IIIA soft armor will stop almost every handgun.  So level IIIA is my suggestion.  Rifles: If you might be involved in active shooter situations or you want something to wear while deer hunting on public land, you'll need rifle protection. This requires hard armor like our ceramic or PE plates.  Level III is good for active shooter scenarios, but if you are hunting go with level IV to stop the rounds that deer hunters use. Choose your coverage area.  Most people choose the coverage of a standard bulletproof vest. A vest covers almost twice the area of a standard plate carrier with 10x12 plates or soft panels, yet it costs just slightly more.   Choose your size carefully.  Bulletproof vests do not fit like a shirt.  Your shoulders, arms, and neck all fit outside the vest.  The most important things about finding the right vest is your height and weight.  Use our size chart to pick the right vest for you.  Find your height and weight on the chart.  Order this size show. If you are between two sizes: If you are fit and have a flat stomach, choose the smaller size. If you don't have a flat stomach, choose the larger size.  This size is probably not the size shirt that you wear.  Don't worry.  Height and Weight is more important. 

The police body armor is composed of a jacket and a bulletproof layer. The bulletproof layer is mainly made of metal and other protective materials, which can absorb the kinetic energy of the warhead and reduce the speed of the warhead, thereby protecting the human body. So, what kind of process did the body armor go through? What are the relevant properties of the inner body armor? Let’s take a closer look at the history of bulletproof vests and related characteristics. Special bulletproof clothing Lightweight bulletproof clothing is a kind of personal protective military uniform used for protecting the human torso from projectiles or shrapnel, mostly in the shape of a vest. Bulletproof clothing made of bulletproof layer and jacket is a kind of individual protective military uniform used for protecting the human torso from projectiles or shrapnel. The thickness of the bulletproof layer is determined by the balance between protection performance and wearing comfort according to different objects. Soldiers wearing alone can significantly reduce battlefield mortality and injury rates.   Police bulletproof clothing is developed on the basis of armor. During the First World War, 80% of the total casualties on the battlefield were caused by low- and medium-velocity stray bullets or fragments, and experts were inspired by ancient armor to develop alternative bulletproof suits in the late war. In World War II, casualties caused by shrapnel still accounted for about 60%. People paid more and more attention to the development of bulletproof clothing. In the early 1940s, the United States and some Western European countries began to develop alloy steel and aluminum alloys. , Chin alloy, glass fiber reinforced plastic, ceramics, nylon and other materials bulletproof clothing, and used in the battlefield.   In the 1960s, the second generation of bulletproof clothing that replaced high-quality steel with high-quality chemical fiber materials began to appear. Since the 1970s, bulletproof clothing has undergone new developments. Body armor can be divided into three types: soft, hard and soft-hard composite. The material of the soft body armor is mainly high-performance textile fibers. These high-performance fibers are much higher than the energy absorption capacity of general materials, giving the body armor the bulletproof function. softness, called soft body armor. The protection level of soft body armor is usual NIJ IIIA AND below.

  Thinking about buying bulletproof products but don't know which size to take? We get it. There are lots of choices to make when it comes to a bundle of bulletproof products - ballistic helmet,ballistic vest,single curve or multi-curve ballistic plate,and soft panel.   The YF  PROTECTOR bulletproof helmet is available in four sizes: S, M, L, XL. The related helmet's inside head circumference are as below. Ballistic helmet's sizes S M L XL Ballistic helmet's inside head circumference(cm) 52-56 54-57 57-59 59-63   The YF  PROTECTOR bulletproof vest is available in six sizes: S, M, L, XL, XXL, XXXL and XXXXL. The related body height infos are as below. Ballistic vests' sizes S M L XL XXL XXXL XXXXL Ballistic vest's sizes for related body height infos(cm) 165~167 168~172 173~177 178~182 182~187 187~190 191~195   The YF  PROTECTOR bulletproof plate is available in various sizes,which are customized.Below are our hot sale sizes infos. Various sizes for Ballistic plate(cm) Rectangular Cut Single Curve Sapi Cut Single Curve Sapi or Rectangular Cut Multi-Curve 15*15 25*30 25*30 15*20 25*32 28*34 23.5*30 26*32 28*36 25*30 26*34   25*32 28*35   26*32 28*36   26*34 30*40   26.5*34 30*43   27*34     28*35     28*36     30*40     30*43       The YF  PROTECTOR bulletproof soft panel is also available in various sizes,which are customized.Below are our hot sale sizes infos. Various sizes for Ballistic soft panel(cm) Rectangular Cut Sapi Cut 15*15 25*30 15*20 28*35 15*28 28*36 20*20   18*23   25*30   25*35   25*40   28*35   28*36   30*38   30*40   30*43     It is much easier to choose sizes for helmet,plate and soft panels.Head circumference is easy to know,and plate and soft panel needs to fit the plate carrier pocket. However, there will be many individual differences in the size of choosing a bulletproof vest.Your bulletproof vest needs to fit in one main area: around your navel. The length of the vest is not important as you can use the shoulder straps to adjust it; the important factor to consider is the diameter of your midsection. If you are a thin man with a large belly, try to order at the top of your size range so that you can fasten the vest around your mid-section. If you are a sports enthusiast with large legs and a slender waist, order at the bottom of your size range.  

Back-face deformation depth: The depth of the back-face deformation of a bulletproof products after being deformed by a bullet impact. The greater the depth, the more likely the user is to have "broken ribs" or others.   FMJ/FMSJ bullet: an all metal armor shell, a common bullet.   JSP/SJSP Bullet: A semi armor soft tip bullet is an ammunition that sacrifices armor piercing performance in exchange for killing soft targets (humans).   JHP/SJHP missile: a semi armored air tip missile, similar to the JSP/SJSP but with stronger soft target killing ability than the Dame.   FMS bullet: an all metal pointed bullet, a German pistol bullet with a conical head that has stronger armor piercing ability.   United States   1) NIJ 0101.06 standard:   The NIJ 0101.06 standard was developed by the National Institute of Justice in the United States to meet the needs of law enforcement agencies for bulletproof vests. The latest 6-version standard was developed in 2008 and will be replaced by the NIJ 0101.07 standard in 2021.   Due to various reasons, this national standard has become the most well-known standard internationally, truly worthy of the title of "Home of the Brave, Land of the Freedom". Moreover, although it is well-known, this standard is still used by American police officers and may not be sufficient in the military field.   The NIJ standard has the deepest back-face deformation depth among all the different countries’ standards.   The depth of the back-face deformation shall not exceed 1.73 inches/44mm.   2) NIJ 0106.01 (modified) standard:   The NIJ 0106.01 standard is a standard for measuring the bulletproof performance of helmets, established by the National Institute of Justice in 1981. In order to save it from falling behind the old regulations of the times, they made some modifications to it at a certain point in time and added the IIIA level based on NIJ 0108.01.   Chinese GA 141-2010 standard    On October 17, 2010, the Ministry of Public Security of the People's Republic of China issued the GA 141-2010 police bulletproof vest standard, which replaced GA 141-2001. It standardized the types of bullets used during testing and modified the requirements for the protective area of bulletproof vests.   The depth of the back-face deformation shall not exceed 25mm.   Russia GOST R 50744-95 new standard   The new standard implemented in 2017 integrates and removes some overly cumbersome old standards, and adds a new bulletproof level - BR6: capable of blocking 12.7 × 108mm 57-BZ-542 API.   The depth of the concave back shall not exceed 16mm.   British HOSDB Standard (2017 Edition)   Its different levels have different BFD depths.   HO1: Can block 9 * 19mm FMJ bullets and 9 * 19mm JHP bullets. There is no requirement for an average depth of concavity, but the maximum depth of concavity shall not exceed 44mm.   HO2: capable of blocking 9 * 19mm FMJ bullets and 9 * 19mm JHP bullets (requiring higher initial velocity of the projectile, which can be understood as pistol bullets fired from long barreled submachine guns/PCCs). The average depth of the depression should not exceed 25mm, and the maximum depth of the depression should not exceed 44mm.   HO3: Can block 7.26 * 51mm NATO (L44A1 or L2A2) bullets and 7.62 * 39mm bullets. The average depth of the depression should not exceed 25mm, and the maximum depth of the depression should not exceed 30mm.   HO4: Can block the. 308 Win (warhead number 480A) produced by Sacco or the. 308 TSX BT produced by Barnes. The average depth of the depression should not exceed 25mm, and the maximum depth of the depression should not exceed 30mm.   SG1: Can block the 12th shotgun. The average depth of the back indentation should not exceed 25mm, and there are no more than three special levels of optional testing for the maximum depth of the back indentation:   Capable of blocking. 357 Magnum flat headed SP bullets. There is no requirement for an average depth of concavity, but the maximum depth of concavity shall not exceed 44mm.   Can block 5.56 * 45mm SS109 (L17A1h or L15A1) bullets. The average depth of the depression should not exceed 25mm, and the maximum depth of the depression should not exceed 30mm.   Can block 5.56 * 45mm (LE223T3) bullets. The average depth of the depression should not exceed 25mm, and the maximum depth of the depression should not exceed 30mm.   German TR standard   The German TR (Technische Richtlinie) was proposed in 2008 based on the VPAM standard, which may be the most common testing standard in Europe. The biggest difference between it and the NIJ standard is that the TR standard tests handgun armor piercing shells, while NIJ does not.   The depth of the concave back shall not exceed 42mm.   SK L: Can block 9 * 19mm DM 41 round head lead core FMJ bullets. SK 1: Can block 9 * 19mm DM 41 round head lead core FMJ bullets, 9 * 19mm QD-PEP II/S special police bullets, and 9 * 19mm Action 4 special police bullets. SK2: Can block. 357 Magnum FMS rounds. SK3: Can block 5.56 * 45mm SS109 bullets and 7.62 * 51mm DM111 steel core bullets. SK4: Can block 7.62 * 51mm P80 armor piercing bullets.