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Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora.Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
The Improved Outer Tactical Vest (IOTV) in MultiCam, as issued to United States Army soldiers. A bulletproof vest, also known as a ballistic vest or bullet-resistant vest, is a type of body armor designed to absorb impact and prevent the penetration of firearm projectiles and explosion fragments to the torso.
The OTV features a carrier shell, and three main (flexible) ballistic panel inserts (front left and front right panels, and a rear back panel), [4] which are made with a finely woven Kevlar KM2 fiber. These two parts of the vest are both bullet and heat resistant and offer protection similar to the earlier PASGT flak jacket.
Excellent thermal stability at temperature extremes, water repellency, chemical stability and resistance to petroleum products have made Kevlar KM2 an indispensable asset to the military personnel who use it every day." [1] "Kevlar KM2 fiber is a transversely isotropic material. Its tensile stress–strain response in the axial direction is ...
It is a part of Ratnik infantry combat system. It was adopted in 2014 as a replacement for the 6B23 vest. [1] 6B45 vest has been developed by Techinkom company located in Saint Petersburg. The 6B45 body armor has a kevlar base as well as pockets on both the front back and sides which allow for added ballistic plates.
A call for a next generation plate, to stop even greater velocity threats than the ESAPI plate was issued by the U.S. Army in 2008. [5] The X Threat Small Arms Protective Insert plates are specifically allowed scalar or flexible systems, and asked for better coverage, with less than a pound of additional weight.
Ballistic face masks are usually made of Kevlar or other bullet resistant materials and the inside of the mask may be padded for shock absorption, depending on the design. Due to weight restrictions, protection levels range only up to NIJ Level IIIA , which offers protection from calibers up to .44 Magnum .
The soft kevlar panels have been tested to stop 9 mm 124 grain full metal jacket bullets at 1,400 ft/s (426 m/s) with minimal deformation and has a V-50 of roughly 1,525 ft/s (465 m/s). This means that the bullet has to be traveling faster than 1,525 ft/s (465 m/s) for it to have more than a 50% chance of breaking through the soft armor panel.