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Forcefield Pro Sub 4K Back Protector

Forcefield Pro Sub 4K Back Protector

SKU: FF.1004

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The Forcefield Pro Sub 4K back protector offers the highest level of impact protection available utilizing superior materials and technology to keep you safe and comfortable whether you are on the track, sport touring or enjoying off-road adventures. Multiple layers of triangular grid NITREX Evo PVC absorb impact energy and adequately dissipate it through each layer. The NITREX Evo PVC in this award winning back protector compresses with elasticity and effectively slows impacts to earn an outstanding 3.38 KiloNewton rating that passes CE 1621-2 testing. This advanced composition of materials is successfully able to withstand multiple impacts so it can be used again and again.

The Pro Sub 4K back protector also delivers remarkable comfort by combining the PVC in flexible layers that contour with your individual shape. Ventilation is achieved with hundreds of holes that allow perspiration to escape and fresh air to flow through. The entire back protector is held inside a Kevlar reinforced removable cover that is machine washable for easy maintenance. Available in sizes small, medium, large and extra large. Invest in the best body armor available and safeguard yourself with a Pro Sub 4K back protector from Forcefield!


  • CE Level 2 
  • Award winning performance that passes CE EN1621-2 testing below 4kN* (3.38 KiloNewtons)
  • Forcefield DRI-M technology is dynamic, reactive and utilizes intelligent materials
  • NITREX Evo PVC triangular grid material is light, elastic and robust to absorb energy and quickly recover to its original shape
  • Individual protective layers move independently for maximum flexibility and shock absorption
  • Proven to reduce the incidence and severity of injuries 
  • Heat activated materials react to your body heat with greater fit and flexibility
  • Soft and comfortable fit with 3D molding that conforms to your body shape and stays in place
  • Built to withstand multiple high energy impacts with reliable performance and protection
  • Extremely breathable with hundreds of vent holes for maximum ventilation to help keep you cool
  • Multi-layered construction dissipates impact energy through each layer
  • Reinforced with Kevlar thread for remarkable strength
  • Highly regarded and award winning soft armor protection
  • Designed for use on the road, track, trail or any other adventure
  • Dual adjustable shoulder straps
  • Machine washable removable cover
  • Available in sizes: small, medium, large & extra large (See the Size Guide in the Instructions & Downloads tab)

What's in the box:

  • Forcefield Pro Sub 4K back protector

 Size Guide:

Size Torso Length
Men's Small >16”
Men's Medium 16½” - 18¼”
Men's Large 18½” - 19¾”
Men's Xtra Large 20”+


 * A KiloNewton is the measurement of transmitted force that enters the body following an impact. 4kN is considered by experts to be the maximum amount of transferred energy that should be subjected to a human being to prevent severe back and rib trauma. 

Manufacturer # N/A
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