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Tryonic Feel 3.7 Back Protector
  • Tryonic Feel 3.7 Back Protector - White/Blue
  • Tryonic Feel 3.7 Back Protector - Grey/Blue

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Video Review

Tryonic Feel 3.7 Back Protector Videos

Tryonic Feel 3.7 Back Protector

The Tryonic Feel 3.7 Back Protector belongs to the top in its class. The outstanding balance between CE Level 2 impact absorption and wearer comfort is due to the unique construction, and the lightweight components and ergonomics are second to none. The Tryonic Vertebra joint system connects the polypropylene outer shells, forming a rigid impenetrable shield and at the same time allowing for an unsurpassed freedom of movement. The EPS inner core ensures maximum energy absorption (< 4kN energy release), well within the CE Level 2 norm (< 9kN energy release). Another unique feature is the adjustable belt closure (Tryonic Custom Fit), ensuring a perfect fit for every rider.

The Feel 3.7 is also one of the most comfortable back protectors for high activity or hot weather riding due to CoolMax mesh fabric in the back. Performing down to minus 20 degrees Celsius, the Feel3.7 is the also perfect choice for a variety of winter sports activities.


  • Outer shell from CoolMax stretch mesh fabric surrounded by thermoformed padding
  • Polypropylene outer shell
  • EPS (Expanded Polystyrene) inner core
  • CE Level 2 (3,7kN) EN 1621-2 standard
  • Ergonomically shaped and molds to the contour of the body
  • TCF Tryonic Custom Fit closure system
  • Air vent channels in outer shell
  • Tryonic Vertebra joint system
  • Tested down to -20° C
  • Average weight 768 gr 

Note: The Tryonic Back Protector has different number of segments depending on size.

Tryonic Back Protector Sizing

Size Torso (cm) Waist (cm)  Height (cm)
SM 40.5-43 60-100 160-170
MD 43-45.5 70-110 170-180
LG 45.5-48 80-115 180-190
XL (See+ Only) 48-50.5 80-120 190-200

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

TL Torso Length While standing upright, measure the distance between your waist (typically at navel or top of the hip bone level) and the top of your shoulder, to the left or right of your spine.
W Waist Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
H Height With no shoes on, stand with your back against a wall and your feet together. Measure from the floor to the top of your head.
Product Style RevZilla Item # Manufacturer Product # Availability
White/Blue / LG 825503 8700001157742 Only 1 Left: Ships within 24 hours
White/Blue / MD 825502 8700001157735 Out of Stock
White/Blue / SM 825501 8700001157728 Available: Requires 1-3 business days lead time prior to shipment
Grey/Blue / LG 825506 8700001157773 Out of Stock
Grey/Blue / MD 825505 8700001157766 Out of Stock
Grey/Blue / SM 825504 8700001157759 Only 3 Left: Ships within 24 hours


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.


If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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Tryonic Feel 3.7 Back Protector 4.8 5 21 21
Affordable and effective. Fits perfectly in my Joe Rocket Classic '92 Women's Jacket. Quick shipping too! May 17, 2016
Awesome back protector Have not got to put the protection to use (hopefully I don't), however its footprint covers my back perfectly. I purchased the small and I am 5'5. I would give this 5 stars, however my suit gets hung up on the plastic bits when at the top and takes some dancing to get my suit up and over it. However, once that is done it stays in place and does not move. The CoolMax channel works great to create space for air to flow. I highly recommend this if it fits your budget. May 11, 2016
Forgot I was wearing it! This was the first time I used a standalone back protector. Had to get it for my first track day. At first, it was pretty uncomfortable and dug into the top of my backside when off bike. After wearing it for a few hours though, I forgot I even had it on. Didn't notice it at all while on the track, not once. Airflow was decent. I definitely noticed mid-day that my back was a tad warm and taking it off for a bit felt good, but it wasn't uncomfortably hot (on a 65 degree day). I would say, it's worth buying this one! May 1, 2016
Back protector It feels great when you wear it, you can wear it with a jacket and won't feel you have ever problems or you probably will forget that you have it, it's really comfortable. I really like It April 22, 2016
Comforting and comfortable A back protector is an absolute necessity when riding, and this seems to be the best one out there right now. On top of the touted "3.7kN energy release," this thing offers near-total coverage, spanning my shoulder blades and covering my tailbone, even in the tuck. It's darned comfortable, too. I recently got another jacket that didn't come with a built-in back protector, and almost didn't bother ordering one to put in it because this standalone Tryonic one was so easy to wear underneath. Whether I'm in my regular gear or my race suit, I simply forget it's there. February 28, 2016
Best protector out there. Don't be cheap! Although I can't say if it works, because I haven't tested it and hope I never do! It fit under my suit, which I never thought I had any room to fit anything under! You don't even know it's there. I bought this protector because it is the best! I just watched my son last month, crash and fracture 3 vertebrae, he now has screws and rods in his back. He was wearing a protector, not this one. But he will be wearing one of these when he gets back on a bike August 17, 2015
MONEY WELL SPENT Luckily, I haven't had to try it's protection yet but i's extremely comfortable and I feel safe with it on. It's well made and I can't even tell I have it on. For bigger gutted guys, there is PLENTY of extra belly velcro adjustment. I'd make this purchase again and recommend it to anyone. My shoulders are much broader than what the measurements said but it still fits fine. I got a medium, for the back length measurement. I am 5'9 250lbs and it fit fine. December 1, 2014
Must have! Obviously any rider knows back protection is extremely important. This lightweight and extremely comfortable unit is just what you need. It might be on the pricier side for some but it is worth it. The only thing is I wish my bike had an easier way to store it. November 10, 2014
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