Let us deal with the honest part first, because you have almost certainly already decided and we are not going to pretend otherwise. A half helmet covers the top of your skull and stops above the ears. It has no chin bar, no face coverage and no eye protection. Our types of motorcycle helmets guide shows what each shape covers, and the honest comparison is not close. If you are still choosing a form factor, read that page first. If you have chosen, this page is for you and it is written straight.
Because here is the thing that actually matters about this category: it is where the fake helmets live. Novelty shells — thin decorative caps sold with a not-for-highway-use line buried in the listing — cluster in exactly two places, half helmets and vintage-look lids, and we said so on our retro helmet ranking. A rider shopping for a half helmet is one careless click away from buying something that is not a helmet at all. So the first filter here is ruthless, and the buying guide below teaches you to check a label yourself in about ten seconds.
The single most useful thing we can tell you: there is no such thing as a "DOT-approved" helmet. The federal regulation, 49 CFR 571.218, says the label is "constituting the manufacturer's certification that the helmet conforms to the applicable Federal motor vehicle safety standards." Nobody in government inspects a helmet before it goes on sale. The maker certifies it themselves, and NHTSA tests after the fact. That is why a novelty shell can wear a DOT sticker and why knowing the real label format is worth more than any brand loyalty.
Our top pick is the Bell Rogue, which publishes three shell sizes — the most on this page — and adds a removable magnetic muzzle, the only face coverage available in this whole ranking. The GMAX HH-65 is the only one whose spec sheet says DOT certified rather than approved, and it includes a drop-down UV400 visor. The HJC IS-Cruiser has the best interior. The Highway 21 9mm is the value pick and the one most riders should buy. The Daytona Skull Cap is the slimmest profile and publishes the least.
We have not crash-tested any of these and we do not run a lab. What follows is built from the FMVSS 218 regulation itself and from manufacturer spec sheets reproduced by a retailer, named and linked at the bottom. Where a maker publishes nothing — and in this category several publish very little — we say so on the card instead of guessing.
"DOT approved" is not a thing. Here is what to look for instead.
Every listing in this category says "DOT approved." It is a phrase the whole industry uses and it describes a process that does not exist. Under 49 CFR 571.218 the helmet label is the manufacturer's certification — the regulation's own words are that the label constitutes "the manufacturer's certification that the helmet conforms to the applicable Federal motor vehicle safety standards." There is no pre-market government approval. NHTSA buys helmets and tests them afterward.
That sounds like bad news and it is actually useful, because the regulation is also very specific about what a compliant label must say. It requires a stack, in this order:
The precise model designation, centered above the symbol; then the symbol DOT; then the term FMVSS No. 218 centered beneath it; then the word CERTIFIED centered beneath that. The model designation must be in letters or numerals not less than 0.09 inch tall.
A novelty shell almost never carries that full four-line stack. It carries a stick-on "DOT" and nothing else, or the listing says "DOT style," which is marketing language meaning it is not certified. Ten seconds with the inside of a helmet settles it. Our guide to reading a certification sticker walks through the whole label, including the ECE and Snell equivalents.
Notice how the picks above are worded. The GMAX spec sheet says DOT certified; the other four say DOT approved. Both companies are almost certainly doing the same thing, but only one of them is using the word the regulation uses, and on a page about a category full of fakes, we score precision.
What a half helmet actually gives up
We are going to state this once, plainly, and then get on with the ranking.
A half helmet has no chin bar. The chin and jaw region takes a large share of serious impacts in motorcycle crashes, and a half helmet leaves all of it exposed, along with your face, your teeth and your eyes. It also stops above the ears, so it covers less of the skull than a 3/4 shell does. This is not an opinion about your riding — it is the coverage geometry, and no certification changes it. A DOT-certified half helmet is a legal, genuinely protective helmet that protects a smaller area than a DOT-certified full-face.
If that trade gives you pause, the middle ground is the 3/4 open-face: same open feeling, same lack of a chin bar, but meaningfully more shell around the sides and back of your head, and usually a shield or sun visor. Our open-face ranking covers the certified options, and several cost about what the helmets on this page cost. If you want the classic look with a chin bar, our retro helmet ranking is full-face only for exactly that reason.
And if this is your first helmet, we would steer you away from a half entirely — not out of judgment, but because a new rider has the least margin and the most to gain from coverage. Our first helmet by head shape and budget guide starts from a different premise for that reason.
Shell count is the fit spec nobody advertises
Every helmet maker faces the same choice: tool one shell and vary the internal foam to cover the whole size range, or tool several shells so each is built around a narrower band of head sizes. One shell is far cheaper to produce. It also means a small head ends up inside a large shell packed with thick foam — sitting high, looking bulbous, and putting more mass further from your skull.
On a half helmet that trade-off is worse than usual, because the entire visual appeal of the category is a shell that sits close to the head. Pad a big shell down two sizes and you have destroyed the exact thing you were paying for. So the published shell counts here carry real weight: the Bell Rogue publishes three shell sizes, the GMAX HH-65 publishes two (XS-MD and LG-2XL), and the HJC, Highway 21 and Daytona publish none at all. An unpublished shell count usually means one.
Measure your head before you shop — our sizing guide takes two minutes and a tape measure, and the numbers map to our size chart. Note that GMAX specifically recommends sizing down if you fall between sizes, which is the kind of detail that decides whether an online order fits.
Eye protection is a separate purchase, and it is not optional
None of these helmets has a face shield. Two of them — the GMAX HH-65 and the HJC IS-Cruiser — include a drop-down sun visor, which handles glare and does nothing for wind, grit, rain or bugs at 60 mph. The other three give you nothing.
So budget for eyewear the same day you budget for the helmet. Riding glasses work for short trips in good weather. Goggles are the more complete answer, and for a half helmet you want a padded road frame rather than a motocross one — our motorcycle goggle ranking covers both and flags which makers actually publish an eye-protection standard, because most of them do not. Squinting into airflow is genuinely dangerous, not just uncomfortable.
The strap is the whole retention system
On a full-face, the shell wraps your head and the strap is a backup. On a half helmet the strap is doing far more of the work, because there is much less shell geometry holding the helmet in place. That makes the retention hardware worth more attention here than in any other category.
Three of the picks publish D-ring retention — the Bell uses stainless steel D-rings, the HJC a nylon strap with D-rings, the Highway 21 a dual D-ring. D-rings are fiddly with gloves on and they are what racing organizations still require, because they cannot rattle loose and they tighten under load. A quick-release buckle is more convenient and is a step down in this specific application.
Whatever the hardware, wear it properly: snug under the jaw, not slack, with no more than about a finger of play. A half helmet that can be rolled forward off your head in a fall has protected nothing, and this is the shape where that failure is easiest. Our how to wear a helmet guide covers the check.
Noise, and what we are not going to claim
A half helmet is loud. There is no shell around your ears, no chin bar, no eye port seal and nothing between the airflow and your head. We are not going to publish a decibel figure because we have not measured one and none of these makers publishes one either — but the physics is not in dispute, and every rider who moves from a full-face to a half notices it immediately.
Which makes hearing protection non-negotiable in this category rather than optional. Wind noise at highway speed causes cumulative, permanent hearing damage, and filtered motorcycle plugs cut broadband wind noise more than they cut speech and sirens — so you end up more aware, not less. Our earplug ranking covers the options and how the NRR and SNR numbers actually work. If you want comms as well, fitting a headset to an open shell is its own problem, covered in our half-helmet intercom ranking.
Which one should you buy?
Buy the Highway 21 9mm if you want the sensible answer. It is DOT approved, it has a real ABS shell, dual D-rings and a removable washable liner, and it costs a fraction of the Bell. Most riders shopping this category are choosing between a certified helmet and an uncertified one at a similar price, and this is the certified one that wins that fight.
Buy the Bell Rogue if you want the best of the category and the price is not the point: three shell sizes is a genuine fit advantage, and the removable magnetic muzzle is the only thing on this page that covers any part of your face — as a wind and debris shield, not as impact protection, and Bell does not claim otherwise.
Buy the GMAX HH-65 if you want a sun visor included and you like that its spec sheet uses the word the regulation uses. Buy the HJC IS-Cruiser if summer comfort matters most — the removable, washable antibacterial liner is the best interior here. And buy the Daytona Skull Cap only if the slimmest possible profile is genuinely the reason you are shopping, understanding that it publishes less about itself than anything else on this page.
Whichever you choose, pair it with eye protection and earplugs on the same order. A half helmet with neither is not a complete setup, and both cost a small fraction of the helmet.
