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Riding gear review · integrated MX/off-road armour

Alpinestars Bionic Jacket V2: Good Protection, But It Didn't Work For Me

6/10
Mat's verdict, for his build specifically

The problem wasn't the protection. The problem wasn't the breathability. The problem was the fit, and with protective armour, fit is everything. I ended up selling it and going back to separate chest and elbow protection.

Alpinestars Bionic Jacket 2 armour laid flat, front view, showing the integrated chest, shoulder and elbow protection
Mat Stuckey By Mat StuckeyFounder of Holloway, rides everything he reviews
Size XLTested in
Off-road / MXArmour type
CE Level 1Chest, back, shoulder, elbow
Sold itWhat happened next

I've always been a fan of Alpinestars kit, and I've had good experiences with other Alpinestars gear, so when I bought the Bionic Jacket V2 I expected it to be a pretty safe bet. Unfortunately, it wasn't. Not because of the protection, and not because of the breathability. The problem was the fit, and with protective armour, fit is everything.

After spending hours riding in it, I eventually got to the point where I simply didn't enjoy wearing it anymore. I ended up selling it and going back to separate chest and elbow protection. That's not necessarily a criticism that applies to everyone, protective gear like this is incredibly dependent on your individual shape, but for my build, the Bionic Jacket V2 just didn't work. I've used it mostly when spending more time off-road, where MX-style armour like this tends to breathe far better than a conventional jacket with armour underneath.

Pros

Robust, reassuring impact protection
Excellent breathability and airflow
Comfortable directly against the skin
Chest, back, shoulder and elbow protection in one piece
Looks the part, low profile for how much it covers

Cons

Fit didn't work for a muscular build, even in XL
Armour moved and the jacket rode up on longer rides
Zips felt lightweight and began to seize
Less fit flexibility than separate chest and elbow armour
Not a forget-you're-wearing-it fit for every build

The fit was the deal-breaker

I'm relatively muscular, and even in an XL I couldn't get the jacket to sit properly. It wasn't catastrophically uncomfortable when I first put it on, and that's actually part of the problem. In the shop or during a short ride, it seemed perfectly acceptable. But spend several hours actually riding in it and the shortcomings became much more obvious. The armour would move around, the jacket would ride up, and rather than the protection moving naturally with my body, I was increasingly aware of the jacket itself. That's exactly what I don't want from protective armour.

When you're riding off-road, you're constantly moving, standing on the pegs, leaning forward, shifting your shoulders and your weight from side to side. The armour needs to move with you rather than becoming something you have to constantly adjust. For me, the Bionic Jacket V2 never quite got there.

The real Alpinestars Bionic Jacket 2 size label, confirming the XL tested in this review
The actual label, size XL, and still not quite the right fit for a muscular build.

That's particularly frustrating because the concept is right

I really wanted to like this jacket. The idea of having your chest, back, shoulders, elbows and other impact protection integrated into one lightweight garment makes a lot of sense for trail riding, there's less individual kit to put on and everything is theoretically held in the right place. Alpinestars lists this level of Bionic armour as CE-certified, Level 1 across the chest, back, shoulder and elbow protectors, built specifically around off-road riding with highly ventilated protection and stretch sections designed to allow real movement. On paper, that's exactly what I wanted. In practice, the fit undermined the whole thing.

The actual protection is good

There's no real criticism I can make of the armour itself. When it's sitting where it should, it feels robust. You get proper coverage across the chest and back, as well as shoulder and elbow protection, and there's something reassuring about having all of that integrated into one piece of kit. It doesn't feel flimsy, and it doesn't feel like an afterthought. If you're buying a product like this, you're buying it primarily for impact protection, and the Bionic Jacket V2 delivers there. My issue was simply keeping that protection where it needed to be during a long ride, and that's a very different problem.

Alpinestars Bionic Jacket 2 laid flat, back view, showing the integrated back protector and shoulder armour
The back protector and shoulder armour, genuinely reassuring when it's actually sitting where it should.

Breathability is excellent

This is probably the thing I miss most about it. When you're riding off-road in warmer weather, traditional motorcycle jackets can become absolutely unbearable. The Bionic Jacket is basically designed around airflow, there's very little material between you and the outside world, and the armour itself is heavily ventilated. When you're moving, you get loads of airflow, and it's genuinely comfortable against the skin too, no feeling of being wrapped in a thick, sweaty protective jacket. For summer trail riding, that's a massive advantage, and if the fit had worked for me, I could have seen myself using this kind of protection for exactly that reason.

The material doesn't feel particularly abrasive or unpleasant worn directly against a base layer or skin either, it's actually quite comfortable in that respect, clearly designed with direct contact and movement in mind. Again, it just didn't translate into a good overall experience for me because the jacket itself wouldn't stay where I wanted it.

Close-up of the Alpinestars Bionic Jacket 2's ventilated mesh construction and chest armour
The ventilated mesh construction up close, genuinely excellent airflow when it's moving.

The zips annoyed me

This is another issue I had. It wasn't particularly long before the zips started becoming difficult to operate, they began to seize, which isn't exactly surprising with this sort of off-road kit. If you're riding trails, the armour is going to get covered in dust, mud, sweat and general grime, that's part of the job. But I've always thought zips on motorcycle protective equipment are an area where manufacturers could do better. The zips on this jacket feel relatively lightweight and delicate to me, and once they started getting dirty, I became concerned about how long they'd last. Perhaps I'm being overly cautious, but I'd much rather see a more substantial zip on equipment that's going to be repeatedly exposed to mud, sweat and movement. That's not really an Alpinestars-specific criticism, it's a general bugbear I have with this type of kit. If a product is designed to be used in mud and dirt, the fastening system should be designed accordingly.

It looks good

This is subjective, obviously, but I like the way it looks. It's much less bulky than wearing a conventional jacket with armour underneath, and it has that proper motocross/enduro appearance. There's something quite appealing about putting it on and feeling like you're actually geared up for riding trails rather than wearing a road jacket that happens to have some armour in it. The Bionic Jacket also manages to look relatively streamlined considering how much protection it contains. Aesthetically, I've got no complaints.

The problem with integrated armour

I think my experience has actually changed what I want from my protective gear. I went into this thinking that having everything integrated into one jacket would be better, one piece, everything attached, everything theoretically staying together. But I've found that I actually prefer separate chest and elbow armour. It gives me more flexibility with fit, I can get the chest protector sitting exactly where I want it and position the elbow protection independently, without compromising the fit of one component because of the way another part of the jacket sits.

For someone with a different build, the Bionic Jacket V2 might fit brilliantly. That's the frustrating thing about products like this, there isn't necessarily a universal "good fit". A jacket can be technically excellent and still be completely wrong for an individual rider.

Would I recommend it?

This is where I'd give a qualified answer. If it fits you properly, yes. There's a lot to like, the protection is good, the ventilation is excellent, it's comfortable against the skin, it looks good, and having all your protection integrated into one garment is convenient. But I would absolutely recommend trying one on properly before buying, not just standing in front of a mirror for five minutes. Wear it, move around, get into a riding position, raise your arms, lean forward. Ideally, spend some time actually riding in it before deciding whether it's right for you, because if the armour moves around or the jacket rides up, none of the other benefits really matter.

Good for

Warm-weather off-road and trail riding, riders who want chest, back, shoulder and elbow protection in one lightweight piece, and whose build happens to suit how the Bionic Jacket V2 fits.

Not for

A relatively muscular build, on my own experience, or anyone who won't try it on properly, moving and in a riding position, before committing to buy.

The scores

Impact protection
8.5/10
Breathability
9/10
Comfort
7/10
Freedom of movement
6/10
Fit
5/10
Build quality
7/10
Ventilation
9/10
Value
6.5/10

My verdict

6/10

I really wanted to like the Alpinestars Bionic Jacket V2. It's lightweight, well ventilated, the protection is good, it feels good against the skin, and it looks good. For summer trail riding, the concept is excellent. But after spending proper time riding in it, the fit became a deal-breaker for me, the armour moved around, the jacket rode up, and after several hours I found myself thinking about the jacket rather than forgetting I was wearing it. You should put it on and forget about it. If you're constantly aware of it moving, it's not doing its job as well as it should, regardless of how good the armour itself is. I've gone back to separate chest and elbow protection, which suits me better, that doesn't make the Bionic Jacket V2 a bad product, it just wasn't the right product for my shape.

Would I try Alpinestars again? Yes, actually. The newer Bionic Plus V2 looks to be a real improvement on the older design, particularly how the protection is integrated and the overall fit and adjustability, so I wouldn't write off Alpinestars' approach altogether. If I decide to go back to an integrated protection jacket, that's the one I'd want to try next, properly, before buying. With protective armour, fit matters more than the badge on the front. Don't assume that because it works for another rider, or even because you're an XL in other Alpinestars kit, it'll work for you. Try it on in a riding position, move around in it, and ideally ride in it, before deciding.

Find where to actually wear it

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This is a genuine first-hand ownership review, not a manufacturer-supplied test. Fit is highly individual, your own experience with this jacket may be completely different depending on your build. Bought and later sold on the same honest terms, this is what Holloway reviews are for, not just gear that worked.