The Flying Solo Gear Co CE Level 2 back protector is made from Viscoelastic. This material is soft and body-forming until it is impacted. At impact it reacts quickly to form a rigid mass. The material prevents trauma to the human body by three methods:
1. Shock Absorption: Material absorbs impact energy through phase change (hardening).
2. Shock Delay: Material delays the transmittance of some shock to the human body over a longer period of time.
3. Dissipation: Impacts are dissipated over larger areas of the body.
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Viscoelastic armour is able to achieve a higher level of shock/impact reducing benefits with more comfort and less bulk than traditional hard armour - foam laminate solutions. Hybrid armour is layered with hard shell outer materials.
European standard EN-1621 is used to rate the effectiveness of armour. In this standard, a 5 kg flat impactor impacts the armour at a speed of 4.47 m/s (energy 5x4,47x4,47/2=50 J "Joules"). 50 J of energy is roughly equivalent to dropping a 1 kg mass from a height of 5m (E=mGH). Sensors measure how much force is transmitted through the armour, its peak force in kilo-newtons (kN), and its period (how long it took the force to be transmitted). If the force transmitted through the armour is less than 35 kN then the armour (all armour except back) can attain an EN-1621-1 rating. Standard also includes other factors such as temperature stability and coverage area. The back protection standard is EN-1621-2. That standard rating is based on that energy being less than 18 kN (EN-1621-2 Level 1) or less than 9 kN (EN-1621-2 Level 2).
|Dimensions||Size: 412(h) x 242(w) x 20(d) mm|
|CE Rating||Meets or Exceeds CE Level 2|