Available on back-order

Aegis Back Protector

£119.99£139.99

Reset
+
-
Size Guide

The Aegis Back Protector from Knox is a best-selling Level 2 back protector with the largest coverage of protection over the back.  Combining honeycomb technology with a tough outer shell, the Aegis allows for total freedom of movement, making it the perfect back protector for riders on track.  It has the benefit of a removable machine washable liner for continued freshness and is available in 6 sizes for men and women.  An optional Micro-Lock chest protector can be easily added.

Style Notes

Style Notes

The Aegis Back Protector from Knox is a best-selling Level 2 back protector with the largest coverage of protection over the back.  Combining honeycomb technology with a tough outer shell, the Aegis allows for total freedom of movement, making it the perfect back protector for riders on track.  It has the benefit of a removable machine washable liner for continued freshness and is available in 6 sizes for men and women.  An optional Micro-Lock chest protector can be easily added.

The Aegis Back Protector from Knox is CE certified to the Motorcycle Back Protector Standard EN1621-2:2014 Level 2.  Not only that but it also passes tests in a temperature range between +40C and -20C.  This makes it suitable for extreme high and low temperatures.  It is, therefore, a multi activity back protector not just for motorcyclists but also for those who enjoy other sports including snowboarding, mountain biking and skiing.

Maximum coverage is ensured thanks to its flexible sliding spine protection which moves freely over the shock absorbing honeycomb.  Meanwhile, thanks to the open cell technology, the Aegis allows the wearer to stay cool thanks to its superior air ventilation system.

A multi position waist strap system gives the wearer the best fit while extra EVA foam on the inside adds to the Aegis back protector’s performance.  A set of extra side adjustment straps give a more secure fit against the spine.  The soft shoulder straps have a quick release system and can cross over for increased comfort.  They also provide the fitting system for an optional Knox Chest protector.

Its removable breathable, machine washable liner is made from spacer fabric for extra air flow.  The low-profile design has been built to be lightweight and breathable, but without any loss of performance.  The kidney armour is removable and there is extra coccyx protection available on the eight-plate Race option.

Knox has the largest choice of sizes to fit both women and men.  These sizes are measured in relation to torso length.  It is, therefore, important to measure the torso length.  There are two sizes for the ladies starting with five plates and a length of 400mm and three for men with an additional from 475mm with 7 plates to 525mm with 9 plates.  All are available in black.  Download a Knox back protector measurement guide to select the correct size.

Details & Fit

Details & Fit

  • CE certified to the Motorcycle Back Protector Standard EN1621-2:2014 Level 2 and passes tests to +40C and -20C making it suitable for extreme high and low temperatures.
  • Multi activity back protector for riders of motorcycles and other sports, ski, mountain bike and snow board.
  • Flexible sliding spine protection moving freely over the shock absorbing honeycomb, ensuring maximum coverage.
  • The Aegis has a superior air ventilation system.
  • Open cell technology for superior air flow to keep riders cool.
  • Extra EVA foam on the inside for added performance.
  • Multi position waist strap system to give the best individual fit.
  • Extra side adjustment straps give a more secure fit against the spine.
  • Quick release soft shoulder straps can cross over for increased comfort. They also give a fitting system for an optional Knox Chest protector.
  • Removable breathable liner made from spacer fabric for extra air flow.
  • Machine washable liner for continued freshness.
  • Low profile design constructed to be lightweight and breathable, without loss of performance.
  • Removable kidney armour for added performance.
  • The largest choice of sizes to fit women and men.
  • Additional coccyx protection available on the 8 Plate Race.
  • Optional Micro-Lock Chest protector can be purchased separately.
  • Colour – Black

Sizes relate to torso length and so it is important to measure the torso length.

Download the back protector measurement guide to select the correct size.

Reviews (42)

  1. Ian, Ontario

    on August 24th I was in a serious motorcycle accident. I was wearing an Aegis back protector, my wife who was a passenger on my motorcycle was not. We were both wearing full leather gear. We suffered similar injuries however due to the back protector I was wearing my injuries were much less severe than my wife. I am sure I would not be walking today if not for my back protector.

  2. Gerry

    I was racing in the Knockhill Race club pre-injection 600 race series when I, unfortunately highsided out of the race at approximately 120mph on the back straight. I was wearing Knox handroid gloves, a knox aegis back protector with Knox chest protector, and knox padded impact shorts. I am happy to report that although knocked out cold…. I had no upper or lower torso damage, due no doubt to the excellent protective qualities of the knox body armour. I am also pleased to report that I sustained no hand/digit damage thanks to the handroid gloves. It is remarkable that despite the speed and ferocity of the accident I emerged relatively unscathed thanks to my knox protection! I’ll be purchasing a new knox back protector and shorts, as I was cut out of these at the trackside, and I wont be going racing ( or when I ride on the road) without Knox protection!.

  3. Rory, Dublin

    Hi, I’m a big fan of your protection gear and was using the Knox Ageis back protector and the Sport chest protector. On my FIRST ride with them on a car pulled out infront of me and long story short, my bike (07 zx6r) was left snapped in half and I was left in hosptial over Christmas! Paramedics are saying YOUR back protector probably saved my life and I’m inclined to agree as theres quite a bit of damage done to it considering it was strapped to me!

  4. Jason Webb

    I bought the new Aegis Back Protector and have been using it for approximately 2 weeks now and had to email you and tell you about it! While I haven’t (and hopefully never will) have to test it, I feel completely safe with this protector on. It is light-weight, comfortable, and gives me peace of mind. The straps around the waist help give my lower back support while I am on longer rides. I looked at the protector and saw the vents on the back and thought that they were a joke; man was I wrong. We have hit over 100 degrees a few times in the last couple weeks and I can feel the air flowing between my back and the protector even though I have it strapped down nice and secure! I love this protector and don’t ride without it. I have every confidence that if I ever were to crash it would do its job. Thanks for helping keep me safe and giving my mom and friends peace of mind while I ride.

  5. Justin, Aberdeen

    In August 2010 I was involved in a crash on my motorbike at 60mph into the side of a car that pulled out on me. I was very lucky to survive and I am still in recovery with further operations ahead. My Bike and most of the equipment I was wearing were destroyed. My HJC helmet was smashed front and back but held together. The only piece of equipment to survive was my Knox Aeigis back protector and it did a great job as I landed on my back further down the road. My back was one of the few places that was un-injured. I suffered Multiple fractures to my right leg including an open fracture, a cracked sternum, bruised liver and kidneys and two bleeds on the brain. There were several other injuries but those are the main ones. Knox guys, good job on the safety equipment. Please pass that on.

  6. Duncan

    I would just like to thank you for the production of your excellent aegis back protector. A couple of months ago i had a head on impact with a car that pulled out directly in front of me. I bounced on the bonnet and over the car, landing flat on my back on the other side. Speed of 100kph approx. Along with my triumph leathers, your aegis protector saved my life. THANKS!!!!!!! The police attending the scene (all bikers) asked about the protection I wore and were very impressed by my lack of serious injury. Thanks again,

  7. Nicos, London

    I had an accident earlier this year where a van pulled out in front of me, instantly I went over the bars and landed on my back. I was winded however I got up within a few minutes and I was ok. There was no lasting damage to my back and I was back at work the next day!
    Following my accident earlier this year I will always wear a KNOX back protector.

  8. D Stevens, Devon

    My 17 year old son as just been in a serious bike accident. Somehow he managed to ride up the ramp of a workman’s trailer , travel over the trailer and cab in the air and land on his back in the road. He was in 2nd gear travelling between 20 and 25 miles per hour. You can see 2 people behind the ambulance – that’s where Tom landed!
    Thanks to the superior quality of your clothing Tom has sustained nothing more than serious bruising. He will be very sore and uncomfortable for a fair few months but thanks to the protective clothing he is safe and well and has astounded the hospital staff by not having any broken bones. He landed on his back after travelling 15-20 feet in the air and was saved, I have no doubt, by your clothing so thank you from the bottom of my heart.
    My son was more concerned and none too impressed by the fact that the ambulance staff had too cut his protective (3 week old) clothing off- I am sure later he will realise how lucky he was to have had the correct gear on!!!

  9. Freddy Pett

    I took a hard landing on my back and head, my leathers burst upon impact with the track but luckily I was wearing my Knox Race Back Protector which did a superb job at protecting my spine. Despite having some nasty grazes to my back, the Knox Back protector saved my spine from serious trauma and I managed to walk away without any broken bones. I even managed to avoid substaining any bruising as well which is truly amazing given the impact I took, the protector did its job perfectly and absorbed the impact.
    Last season I had a crash whilst not wearing a Knox Back protector and I ended up fracturing my T12 Vertebra and spending the next 12 weeks in a body brace. I will never be going out on track without my Knox Protection on in future, it truly is the best safety equipment out there and I owe it to the Planet Knox Guys for keeping my championship campaign alive. I can’t recommend their safety equipment enough, especially the back protectors!

  10. John

    Great fit and very comfortable!
    I would definitely recommend this product, easy to put on, great quality. It isn’t bulky either and you really don’t know your wearing it but it does keep your back warm as well. Makes you feel very safe.

  11. Rene Friedrichs

    Very good product and comfortable to wear
    It is a great and comfortable back protector. But it is also my first non-soft one that isn’t integrated into a jacket, so I cannot compare it to any other protectors. I am happy with it and would recommend it.

  12. Ian Shepherd

    Good quality protection
    In the flesh looks to be a very well designed and manufactured product. Seems to be made of good materials and I’ve no doubts about longevity. Fit is multi adjustable so comfort seems assured. Haven’t tried it out in anger as yet (b****y weather!) so this is no long term review. Worth the money, hope never to need it.

  13. Thorin S.

    I use one of these along with the chest protector. Never get on the bike without it. At first I thought the way the plates go together might get loose after a while but after 6000 miles of mostly town riding they are fine. the chest protector is well vented and doesn’t make you hot in the summer (to be fair it doesn’t keep you warm in the winter either!). I guess to give a proper test I need a proper accident and that hasn’t happened yet (though did have a minor spill). I don’t look after it, i wear it then chuck it in a corner and it still looks like new. Again – knox provide a very clear measure guide (including you tube vids) so make sure you order the right size. They are very good at sorting returns but with the guide you can get it right first time.

  14. Kristaps S.

    Excellent item, excellent service!

  15. Jiří U.

    Super:)

  16. Seth S.

    Really great! Fast shipment, amazing quality, and comfort! Recommended!

  17. Stephen B.

    Fantastic bit of kit ! Great build quality and fit and most of all its British made !
    The speed of service was unbelievable , ordered one day arrived the next !

  18. Harry B.

    I am using the Aegis 5 backplate for Downhill Mountain biking, it fits really well and is really comfy when riding. It works well with my neck brace, is easy to adjust and easy to put on and off. It’s lightweight and does a fantastic job. I have already tested it in a big off I had landing flat on my back in a big rock section on the track. Thankfully the back plate took the full impact and I was able to carry on racing.

  19. Andrius D.

    Great product! Nicely fitted!

  20. Kirsten F.

    I recieved the back shield only yesterday, and have not yet had teh opportunity to wear it while riding. However, it does fit perfectly, due to its different adjustment features. And the skipping was fast, too!

  21. Mark M.

    This is the excellent Knox Back Protector that held up during my recent 100mph+ crash at Brands Hatch GP circuit. After running wide and exiting the track the bike immediately dug into the gravel and flipped me over the handlebars, whilst cartwheeling in mid air the bike caught up with me and hit me directly in the back. The back protector took the majority of the impact and sustained heavy damage, but I only ended up with two minor broken vertebrae, but importantly am able to walk away from this crash. The trauma doctor who treated me said that without the back protector, due to the nature of the impact, there was a significant likelihood I would have sustained much more serious back injuries and had a real chance of even being paralysed. I now won’t ever ride a bike again without wearing a Knox Aegis back protector.

  22. Aaron c.

    I have worn this back protector for a full season of racing and have had no issues what so ever with it. Don’t notice it at all once it is on and in place, and can’t feel it at all while riding.

  23. Luke Shelley

    Im currently racing in British Supersport alongside the British Superbike Championships and i couldn’t recommend this back protector higher. Not only do i feel much safer in the Knox Aegis, ive tested out at high speeds and has kept me safe. It is also the most comfortable back protection out there! Easy 5 stars!

  24. Chris T.

    I have been using Knox armour products for the past 2 years for my racing within British Superbikes, and cannot fault the Aegis back protector in any way. It fits and contours the back perfectly, and I always feel super comfortable out on the bike and never feel restricted in any of my movements. The waist and shoulder straps are really easy to adjust too, which means you can get it to sit just how you like it on the body.

  25. Freddy Pett

    I have been using the Aegis back protector in this years British Supersport Championship and love it. Not only does it fill be with confident that its going to and has twice this season protected me in crashes, its also very comfortable to wear and fits extremely well, making it hard to even feel when you have it on under your leathers. Wouldnt ride without one, on race circuits or the roads. A Must have product!

  26. Rick E.

    I work as a stunt performer for film and TV and this back protector goes everywhere with me. With its impressive articulation and close-fitting styling I have put it through its paces on a regular basis and it has never let me down. Definitely highly recommended.

  27. Harry Barrett

    I am using the Aegis 5 backplate for Downhill Mountain biking. The first thing is the sizing is perfect for kids it fits really well and is easy to adjust and so comfy and flexible when riding you forget you have it on. It works really well with my neck brace, is easy to adjust and easy to put on and off. It’s lightweight and does a fantastic job, I have already tested it in a big off and the back plate took the full impact and I was able to carry on racing. I would say it’s the best on the market for kids like me as the fit and protection is perfect unlike all others I have used in the past

  28. Brandon Cretu

    I have been wearing Knox products for over 3 years now. I trust them with protecting me around the Isle of Man TT and Macau Grand Prix street circuits. These circuits are dangerous enough so I make sure to use the best gear possible.
    The Aegis back protector is slim and fits very well in between my body and my leathers. It doesn’t ride up and the waist strap is very comfortable.
    I have crash tested them at the TT and Macau GP…walked away each time and definitely attribute the Knox Aegis to giving me the protection I need during those unfortunate incidents!

  29. Dan D.

    Great product – fits very well so I will wear it every time I ride. No hassle quick delivery to Australia, these things should be used by more of us.

  30. James Cowton

    just like most other Knox products top quality and can not go without it for the roads like on Isle of man and on circuits too the back protector is a must and if you have the correct size one you don’t even know its there and with the rap round kidney belt fives full support

  31. Alex B.

    Aegis is perfect for Racing use.
    It’s Very comfortable and light.

  32. Leslie T.

    As with everything Knox ie: product , service , delivery allwas spot on. the Aegis back protector does everything it says it promises , such as comfort to wear etc. I hope I never have to test it in an accident situation,but the materials,design and construction inspire confidence

  33. Mathew A.

    Great back protector, really comfortable under leathers and doesn’t ride up the back. Doesn’t make it too difficult to get the leathers on/off either.

  34. Andrea M.

    Very good

  35. Aimee T.

    LOVE my back protector. Great fit, and it allows for plenty of movement, which is critical to me as I’m the passenger on a road race sidecar. I also love that I can have the shoulder straps crossed over on the front – more comfortable being a woman

  36. Mark C.

    The back protector fits perfectly, is comfortable to wear even in hot weather. I thoroughly recommend this product.

  37. Pat

    Its everything they say it is… Everything… But I wish they lengthened it to have tail-bone protection.

  38. Reynaldo P.

    Fits quite well given the available adjustments. Allows for good ventilation and does not feel hot. Another good product from Knox.

  39. Marco C.

    Fast Shipping to Canada, Great Service!

  40. luke t.

    back protector is a really good fit and very flexible with my back and the chest protector attachment is amazing as a professional uk stuntman the quickness and ease in getting it attached and taken of is great!

  41. Kerry V.

    Excellent product

  42. David M

    (verified owner)

    Was very satisfied with the back protector, the fit, and weight were good, and it seems robust. Hopefully it won’t get subjected to a real world test, but I feel confident it would perform well, if it was required.

Add a review

Your email address will not be published. Required fields are marked *

Technical Information

Need help? Use Live chat or email us at: [email protected]

CE Certified EN1621 – 2 – 2014 Level 2

The Knox Aegis is CE certified to the latest back protector standard, EN 1621-2:2014 Level 2 and passes tests at high and low temperatures -20C and + 40C making it a suitable back protector for all sports, motorcycle, bike, ski or snowboard.

The CE Test Covers

Approval of Technical file, Approval of user information, Approval of size range, Minimum zone of protection, Performance in ambient conditions, Performance in hydrolytic conditions, Ergonomic assessment, Product marking, Innocuousness. The Aegis also passed on the optional tests of Performance in high and low temperature conditions.

Flexible Spine

Flexible sliding spine protection moving freely over the shock absorbing honeycomb ensuring maximum coverage.

X-Fit Fastening System

Quick release soft shoulder straps can cross over for increased comfort. They also give a fitting system for an optional Knox CE Approved Chest protector.

The Importance of Fit

Multi adjustment system on the waist to give an individual fit. Extra side adjustment straps give a more secure fit against the spine.

Size Guide

Need help? Use Live chat or email us at: [email protected]

Aegis Sizing

5 plate Ladies S Torso length 400mm
6 Plate Ladies L Torso length 450mm
7 Plate Men’s S Torso length 475mm
8 Plate Men’s M Torso length 510mm
9 Plate Men’s L Torso length 525mm
8 Race Plate Men’s M with coccyx protection Torso length 510mm

Download measuring guide

People also bought

Need help selecting products that go well together? Use Live chat or email us at: [email protected]

preloader