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Forcefield Pro Sub 4 Back Protector

Flexible and breathable level 2 CE certified strap-on back protector with high impact resistance

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Was $174.16

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Customer Reviews for Forcefield Pro Sub 4 Back Protector

Forcefield Pro Sub 4 Back Protector
April 25, 2019

Makes you feel instantly better protected

It fits great and it's easily cinched in with the waistband. Even during our unseasonably warm Easter weekend I didn't end up with a soaked back after wearing it for a good few hours.

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Forcefield Pro Sub 4 Back Protector
January 26, 2019

Comfortable, Great price, great service.

I went with the XL in size and it fits perfectly. I'm 6'2 with a comfy build. Its quite a deep protector not like an insert for ya jacket. It's very comfortable, once fitted and warm you don't know its there. Being a high quality level 2 protector it just makes you feel that little more at ease. A very good product with great service as always.

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Forcefield Pro Sub 4 Back Protector
November 18, 2018

Once it warms up you don't know it's there

I have the first version of this. I and it have survived a few crashes. This the second version, that looks the same except for the yellow trim. However, it is constructed differently, with several layers of armour rather than two. It is more comfortable and flexible than the first version. Once it warms up you don't know it's there. An excellent and essential product that hasn't been bettered. A bargain price too.

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Forcefield Pro Sub 4 Back Protector
May 28, 2018

Great choice

Feels really comfortable and the price is reasonable.

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Forcefield Pro Sub 4 Back Protector
March 28, 2018

Top of the range product

Great size and very comfortable on - all day long. Great protection feeling.

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Forcefield Pro Sub 4 Back Protector
March 28, 2018

It looks reliable

I have an older version of the same brand. The new one looks more reliable but thicker than its predecessor. Good news: it is available in size XL for taller bikers. The quality is very good.

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Forcefield Pro Sub 4 Back Protector
February 7, 2018

Excellent back protector

The back protector is comfortable and light, perhaps a bit 'more bulky than other models, you may need to use a slightly larger jacket. I got an M that fits me perfectly even if I'm 1,78x 75kg. Given the time of the year I cannot say how hot it could be in the summer.

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Forcefield Pro Sub 4 Back Protector
February 1, 2018

Very good armour

It's very good armour. I think fixing strap a little bit big at tummy. But I really like this item. Thanks.

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Forcefield Pro Sub 4 Back Protector
January 16, 2018


Fantastic product, service first class as always from Sportsbikeshop, definitely an upgrade from my Knox Aegis. Worth the price especially as I had a price match as well. Will use Sportsbikeshop again.

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Forcefield Pro Sub 4 Back Protector
December 31, 2017

Best current back protector in the market

You really realize its protective capabilities when you receive the protector. Just make sure that you really have room for a protector in your jacket or leather suit since it is really thick - 1 inch thick. I am 1.70 m I wear 48 jacket 50 suits I ordered Medium and fits perfect.

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Press Reviews for Forcefield Pro Sub 4 Back Protector


Forcefield Pro Sub 4 Back Protector

  • The world's first Motorcycle back protector to transmit less than 4kn when subjected to the standard CE test
  • Removable & Washable Outer Cover
  • CE Level 2 Protection - Highest Possible
  • Repeat Performance Technology
  • Comfortable & Non restrictive
  • Flexible and Breathable
  • Moulds to body shape
  • Adjustable waist and shoulder straps
  • Multi Sport use
  • EN1621-2:2003
  • EN340:2003

The Forcefield Pro Sub 4 was specifically designed to test at under 4kn transmitted energy when subjected to the standard CE test EN1621-2. 4kn is considered by medical experts to be the maximum amount of transmitted energy that should be subjected to a user to prevent severe back and rib trauma. Independent testing by SATRA shows a mean test result of 3.38kn making it the first motorcycle back protector in the world to attain this level of performance.

The Forcefield Pro Sub 4 back protector is constructed with a removable & washable outer cover; this gives the user the ability to keep the cover clean and hygienic. It also makes the protector more flexible as it is not bonded at the edges, this in turn makes it more comfortable, a prime consideration when Forcefield design any protector, it is know that if a protector isn't comfortable it will not be used or could be distracting and dangerous for the user.

As with all Forcefield Body Armour the Pro Sub 4 has RPT (Repeat Performance Technology) ensuring continued and consistent protection even after multiple impacts.



Forcefield Body Armour specialises in impact protection and high performance clothing systems. The brand prides itself on developing and producing cutting edge, innovative and class leading products. Winning countless awards and reviews, Forcefield continues to grow across many industries and sports. Forcefield Body Armour was launched in 2003 and is already synonymous with performance, safety and innovation; however their experience in body armour goes all the way back to 1987 when TPro became probably the first company to take body armour for sports seriously. This was further endorsed by being one of the first companies to embrace the CE mark in the early 90's.

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