Alpinestars Tech-Air 5 Plasma Review

Every airbag vest on the market solves the same problem and almost all of them lose to the same objection. Not price — bulk. Riders try an over-jacket airbag, notice they look like they are wearing a life preserver, and leave it in the garage. The Tech-Air 5 Plasma is the first system in our registry built primarily to defeat that objection rather than to win a spec sheet, and the number that matters is 1,530 g: roughly half what Alpinestars’ own over-jacket Tech-Air 3 systems weigh, and more than 25% lighter than the original Tech-Air 5 it replaces.

That is the whole argument, and it is a good one. An airbag you will actually put on every ride beats a better-certified airbag you wear twice. But there is a certification line on this vest that costs it a point, and there is an ownership cost that nobody quotes at the till, so let us do both honestly.

What Alpinestars publishes

Everything below is read off Alpinestars’ own product page on November 4, 2026 — the same page we first recorded these specs from when we built the airbag vest ranking, read again for this review.

Coverage: full chest, ribs, back and shoulders. This is the widest published zone list of any electronic vest we rank. Most publish chest and back and stop there. The rib coverage is the one worth pausing on, because ribs are among the most common and most miserable motorcycle injuries, they take months rather than weeks, and they are precisely the zone a conventional CE back protector does nothing about. Underneath the bag there is also a passive back protector certified to EN 1621-2:2014 Level 1 for the full back, so the spine has armor behind it whether or not the system ever fires.

Certification: EN 1621-4:2013 Level 1, full back. That is the airbag standard, and Level 1 is the lower of its two levels. Alpinestars also certifies the garment itself to EN 17092-6:2020 as a Class C undergarment and the whole system as Category II PPE. Taken together that is a complete and verifiable certification picture, which is more than several competitors publish — but Level 1 is still the ceiling here, and we come back to that below because it is the one thing we mark the vest down for.

Arming: automatic, on the zip. Alpinestars publishes that “when the activation zip has been fully zipped to the top, the system will automatically turn on”, through an internal magnetic sensor, with haptic confirmation that it has armed. This is a genuinely good piece of design thinking and it deserves more credit than a spec line gives it. Every protective device that depends on a rider remembering a step eventually gets skipped. Zipping your vest is not a step you forget, because the alternative is riding with it hanging open.

Power: up to 30 hours of ride time per charge. Charge time is not published, and we are not going to estimate it. Thirty hours covers a long riding weekend or a fortnight of commuting, which is the right side of the line where a device becomes a chore.

Fit: eight sizes, XS to 4XL, worn under a jacket. Eight sizes is a serious size range for a protective garment and it matters more for an airbag than for anything else you own: a vest that sits loose has air gaps where it needs contact, and a vest that is too tight will not inflate into the space it needs.

The certification line that costs it a point

Here is the uncomfortable fact, and we would rather you read it here than find it after you have paid. Alpinestars’ own cheaper Tech-Air 3 V2 publishes EN 1621-4 Level 2 for chest and back. This vest, the more expensive and more sophisticated one, publishes Level 1. On the standard that exists specifically to measure airbags, you can buy a less expensive Alpinestars system that tests higher.

We are not going to pretend that away, and it is why this vest does not score higher than it does. But the trade behind it is real and it is worth understanding rather than just scoring. The Tech-Air 3 systems are worn over a jacket and weigh roughly double. They are visible, they change how you look, and they are the systems riders most often describe leaving at home. The Plasma’s entire design brief was to be unobtrusive enough that it goes on every time, and getting there cost inflated volume, which is what the standard’s levels are largely measuring.

So the honest framing is a question rather than a verdict: would you rather have Level 2 protection some of the time, or Level 1 every time? For a rider who will genuinely wear an over-jacket system — a track rider, a commuter who does not care how it looks — the Tech-Air 3 V2 is the better buy and we say so on the roundup. For everyone who has ever quietly stopped wearing a piece of gear because of how it felt, the Plasma is the one that will be on you when it matters. Neither answer is wrong. Only one of them is yours.

The ownership cost nobody quotes

This is the part the category is cagey about, and Alpinestars deserves credit for printing it. There are two numbers.

Six deployments. The airbag is certified for up to six inflations before it has to be replaced — not re-serviced, replaced. For a street rider that is a ceiling you will almost certainly never reach. For a track rider who goes down a couple of times a season, it is a genuine and quotable lifespan on a premium piece of kit, and it belongs in the purchase decision rather than in the small print.

The canister. Alpinestars lists a replacement gas canister at $139.95 on the same page as the system, and publishes a “quick-release service cover” that “allows user-replaceable gas inflator (where legally permitted)”. Two things follow. First, a deployment does not automatically mean shipping the vest to a dealer and riding unprotected for three weeks, which is how rearming works on some competing systems and is a real cost in time even when it is free in money. Second, that “where legally permitted” is Alpinestars’ own caveat about compressed-gas rules, which vary by jurisdiction — check yours rather than assuming.

We quote the canister price here because Alpinestars published it as a list price on its own page, which is a fact about the product rather than a street price that moves. For the system itself, use the live price on the buy button above: that is the only number on this site that is checked rather than quoted.

What is still not published

Four things, and they go here because a review that only lists what a maker chose to tell you is an advertisement.

Charge time. Alpinestars publishes 30 hours of ride time and not a word about how long it takes to put those hours back. For a device you charge between rides that is a small omission, but it is an omission. Box contents. The page describes “all included protective parts” without itemizing them, so you cannot confirm what arrives in the box before it arrives. App and connectivity. Nothing is published about whether the system pairs with a phone, logs deployments, or reports its own state beyond the haptic arming confirmation. Subscription terms. Nothing is published, which in this case we read as good news — Alpinestars names no fee anywhere — but “no subscription mentioned” is strictly a different statement from “no subscription, guaranteed in writing”, and we will not upgrade one into the other.

Who should buy it

Buy it if you ride a street or sport bike in gear you already like, and the reason you do not own an airbag is that every one you have tried felt like wearing furniture. That is the rider this vest was designed for and it answers them completely: it disappears under a jacket, it arms itself, it covers more zones than anything else we rank, and it does not ask for a monthly fee.

Do not buy it if your jacket has no room — a close-cut leather sport jacket is the common failure, and the fix is a different jacket, not a different airbag. Check our sport jacket ranking if that is where you are. Do not buy it if a Level 2 certification is the thing you are optimizing for, because Alpinestars sells a cheaper system that publishes one. And do not buy it as your first upgrade if you are still riding without a back protector at all: the airbag vest versus back protector comparison lays out what a $90 CE Level 2 pad covers, and for a rider on a budget the correct order is armor first, airbag second. Our armored base layer picks are the cheapest way to wear protection the same way this vest does.

One closing note on honesty, because it governs everything on this site. We have not tested this vest, we have not deployed one, and we own no lab. We have read what Alpinestars publishes, recorded what it does not, and told you which of its own products beats it on the standard that matters. Our review method explains exactly what our score is and is not.