TRIANGLE Convertible Full Face Motorcycle Helmet DOT Approved for Men Women | Detachable mask transforms to 3/4 open face helmet, includes internal tinted sunshield, removable liner and storage bag
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Availability:
In Stock.
Arrives
Tuesday, Jul 28
Size: Medium
Color: Black
Features
- DOT Certified & Rugged Protection Ride with absolute peace of mind across any road or rugged trail. This heavy-duty motorcycle helmet fully meets or exceeds strict DOT FMVSS-218 safety standards to guarantee top-tier impact defense for adult riders. Engineered with a high-impact ABS outer shell and a multi-density EPS buffer liner, it stands as a premier dot helmet built for maximum reliability on street bikes, cruisers, or adventure touring
- Multi-Configuration 2-in-1 Versatility Adapt your armor to any riding style with a true hybrid architecture. Featuring a fully detachable front mask, this innovative modular motorcycle helmet effortlessly morphs from a protective full face helmet profile into a breezy 3/4 open face setup. This multi-configuration structure offers incredible flexibility for changing weather, providing elite performance among modular helmets motorcycle choices
- Tool-Free Removable Shield & Built-In Sunshield Master shifting light and trail conditions on the fly without stopping. This advanced system features an easily removable, crystal-clear outer shield for an expansive field of view, making it a favorite full face motorcycle helmet setup. Paired with an internal drop-down sunshield, it instantly protects your eyes from blinding sun glare and blowing dust without needing complex lens swaps
- Aerodynamic Airflow & Washable Comfort Say goodbye to a stuffy hot interior and lingering odors. Designed with multiple strategic intake scoops and rear exhaust vents, it forces fresh cooling air through the core to pull heat and sweat out. The premium comfort padding of this full face helmet adult option is fully removable, water-washable, and replaceable, ensuring a long-lasting, fresh-wearing feel
- Perfect Adult Sizing & Bonus Storage Bag Finely tuned for an anatomically contoured fit that stays secure at high highway speeds. These motorcycle helmets for adults are available in 5 precise sizes (S-XXL) to comfortably accommodate both motorcycle helmets for men and motorcycle helmets for women sizing needs. Each unit includes a heavy-duty drawstring helmet storage bag to guard your sleek finish from scratches and dust when off the bike
Color: Black
Brand: TRIANGLE
Vehicle Service Type: Motorcycle
Item Weight: 1.95 kg
Material: Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS)
Brand Name: TRIANGLE
Manufacturer: TRIANGLE
Model Name: OP12A-MB-M
UPC: 850035362204
Included Components: Helmet
Item Type Name: Helmet
Model Number: OP12A
Number of Items: 1
Manufacturer Part Number: OP12A-MB-M
Unit Count: 1 Count
Warranty Description: 1 year
Color: Black
Shape: Round
Style Name: Black
Compatible with Vehicle Type: Motorcycle
Sport Type: Motorcycling
Number Of Vents: 1
Closure Type: Buckle
Material Type: Acrylonitrile Butadiene Styrene (ABS), Expanded Polystyrene (EPS)
Finish Type: Matte
Shell Type: Hard
Item Weight: 1.95 kg
Certificate Type: DOT
Specification Met: DOT, FMVSS 218
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: Large
Color: Gray
Great fit and solid protection, awesome visors and more importantly it looks BADASS!!!
Reviewed in the United States on July 18, 2026 by Davidson Rosa
Size: Medium
Color: White
Love the helmet, its great quality for the price. However, I wear a small but read reviews and measured and it said they run small. Mine did not, it was too big. So I immediately ordered another one in a small but now I have to wait, again but I liked it that much!! Just ready to take it for a ride. So if you guys could put a rush in on the shipping for me that would be fantastic!! Good product
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Reviewed in the United States on July 19, 2026 by Aimee
I needed a new cool and cold weather helmet going into the season and wanted to give this style a try. In FL, winters consist of cool (sometimes cold) mornings and warmer afternoons. A full helmet works for the winter mornings but is sometimes too stuffy for the afternoon. I liked that I could use the facemask in the morning and easily remove it for the afternoon. There are no vents in the helmet, so I would not recommend using the full shield above 85 degrees. It would be too hot. This helmet is very aerodynamic and is the first one I have had in a long while that does not lift up when I get to highway speeds. I do ride behind a windshield. First time out I stood up at about 45 and the helmet was very comfortable in the windstream. The full shield is optically correct, and it is easy to forget it is even there, until you go to scratch your nose and bop yourself in the face. So for the bad: I took away 1 star for 2 reasons. The first is that the chin strap is too far back and presses on my throat. It would be nice if it could be shifted slightly forward. Second is that the full shield is very difficult to push up with 1 hand. It snaps down onto the lower part of the helmet shell and is designed to be raised with 2 hands. I have tried to raise it 3 times at low speed and twice one side popped off in my hand. Both times I had to pull it off completely and tuck it under one leg to pull over, take the helmet off, and pop it back on. Very dangerous when that happens in traffic. Sometimes you have to raise it while riding, so I would recommend wearing the helmet and practicing raising it with one hand. It can be done; you just have to be careful. It has to be rotated upward while pushing in at the top. Any force applied outward will pop it out. EDIT: After riding a few weeks (daily) here are my updates: 1- the chin strap attachment points loosened up after a day or two and now it sits comfortably on my neck as it is supposed to, so that problem is resolved 2- the full-face shield now pops off most times I go to lower or raise it, whether I use 2 hands or not. The attachment points seem to have loosened up. It fogs up under 15mph because it is so close to my nose and mouth, so I used to use 1 hand to drop it down once I got to the main road, Now I have to put it down before riding or leave it up for the whole trip. The shield must be raised to put the helmet on and then lowered, so this morning I had to take the helmet off, reattach the shield, and put the helmet back on 4 times before I was able to successfully lower the shield and start riding. The shield is such a PIA that I have clear safety glasses that I use in the evening and just leave it up, since it is a little warmer (the internal visor is smoke, so i can't use it after dark). I will probably just toss the shield and use the facemask during colder mornings. I want to remove another star, but I do like this helmet. It is very comfortable, cool looking, and the removable facemask is nice. It's just that the full shield is so poorly designed, like an afterthought. If there was a clear option for the internal shield, I could toss the full shield, use sunglasses during the day and it would be the perfect helmet. For that reason, I will leave it at 4 starts and still recommend the helmet.
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Reviewed in the United States on October 25, 2022 by Matt
Size: X-Large
Color: Green
Bought my first bike this year, a Harley - went for style over function and bought a half helm from the Harley store to go with it. $300 later, the chin strap attachment I had to get (I sucked at the ring-tying) sucks hard - I'm getting bugs lodged in my ears (I ride a lot in country fields), and I'm clinically deaf from the wind after a short 45-minute ride. Sizing Chart: The sizing chart is pretty accurate, I have a big head (lot of hot air in there I guess) and where I thought going a size up was going to be roomy it's actually quite snug but still comfortable. Chin Strap: Kicks the crap out of both the default ring on the Harley helmet as well as the additional clip I had to buy. You "un-snap" your chin strap similar to Ski boots...just lift and pull. Where the Harley Helmet moves a bunch when I'm over 50 mph, this helm stays put. Padding: Extremely comfortable - the snug fit makes it kinda tricky putting my glasses on after I put the helmet on, with an upside that the padding holds my glasses in place so there's no "nose sliding" as I look around. The padding is a little bit tight on my ears - but this helps for a more quiet ride. Visors: Clear visor is indeed super easy to remove. Tinted visor is a snug fit when down, very little if any air coming in under the visor. My only complaint here is that the sun glare can make visuals opaque - this is the only reason I gave it a 4 and not a 5 on comfort. Bear in mind - this is sun in the face at 6:00pm, midday it's good. Chin Guard: TONS of air flow coming in through the chin guard - literally feel the air moving to the back and around my head. At a price of $70 - you seriously can't go wrong with this helm. Love the design too - went with the green one, wouldn't go back.
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Reviewed in the United States on September 27, 2023 by Wilcher
Size: Large
Color: White
I have a 60cm head and the size large fit perfectly and is comfortable and light. The jaw piece is indeed very close to your nose and chin but isn’t bothersome. The jaw piece wasn’t loose or flimsy like others have stated, neither was the clear visor. The built in sunshades aren’t overly tinted and I could see perfectly fine riding after sunset using them. Overall the helmet isn’t as sturdy as a $350 Bell brand helmet but for $89 it’s pretty good. My only real problem with this helmet is that when the clear visor is flicked up, once you reach 40mph, a loud ear piercing whistling noise occurs. That was a deal breaker for me so I removed it entirely but I don’t care too much as the helmet looks far better without it attached. Removing the clear visor did chip the paint on the side of the helmet and the mounting pieces aren’t exactly solid either. But when you put it back on it stays in place perfectly fine. The ventilation is good and I didn’t experience any significant fogging while riding. I wouldn’t recommend the helmet for long distance touring or for strenuous use over several years, but for the price you pay it’s definitely a neat looking around town option and I’m happy with how it looks.
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Reviewed in the United States on June 2, 2026 by Amazon Customer
Size: X-Large
Color: Black
fit well. a lot of padding. visor is great. love how the face piece can come off as needed.
Reviewed in the United States on July 1, 2026 by Kelsea Knowlton
Size: Medium
Color: Black
I recently purchased a Triangle brand motorcycle helmet, hoping for a decent blend of protection and comfort. Unfortunately, my experience has been nothing short of frustrating, and I feel compelled to share a negative review so others can be forewarned. From the moment I started riding with it, the air circulation was noticeably poor. Even on cooler days, I found myself overheating, and the lack of proper venting meant my head felt stifled and clammy. This isn't just uncomfortable; it's a safety concern, as it can lead to distraction. The lenses are another major letdown. They feel incredibly cheap and, worse yet, are constantly unclear. Whether it's fogging up or just a general lack of optical clarity, I'm constantly struggling to get a clear view of the road, which is absolutely critical for safe riding. It feels like an afterthought rather than an integral safety feature. The sizing is perhaps the most egregious flaw. I tried both a Small and a Medium. The Small was uncomfortably tight, digging into my head, while the Medium felt ridiculously loose, moving around far too much. It genuinely seems like they're using one shell size for all head sizes, simply padding it differently. This "one-size-fits-none" approach makes it impossible to achieve a secure, comfortable, and safe fit. To add insult to injury, the support for this product is practically non-existent. After only a few months since the helmet's release, there are no replacement parts available anywhere. If a visor scratches or a mechanism breaks, you're out of luck and essentially left with a very expensive paperweight. This lack of after-sales support is unacceptable for a safety-critical item. In summary, the Triangle brand motorcycle helmet fails on multiple critical fronts: poor airflow, substandard and unclear lenses, terrible sizing, and a complete lack of replacement parts. I strongly advise potential buyers to look elsewhere for a helmet that prioritizes rider comfort and safety.
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Reviewed in the United States on June 12, 2025 by Leuname cibir
Size: Large
Color: Black
I'm coming to this $70 helmet from a helmet that cost me around 500 with accessories (blue chrome face shield, spoiler, transitions drop down shades) On paper it shouldn't really be a comparison, but in practice the icon air flight is worse than almost every single way. To start with the icon makes me look like a bobblehead because they only have a couple of shell sizes and on top of that due to how narrow icons helmets are, I had to get a size bigger than I would normally get. Now it's probably a good time to point out this triangle helmet runs true to size (I've had other cheap helmets where I needed to order a larger size to fit my 68cm head. Even with ordering a size larger than I needed on paper, the icon fit so tight It gave me a headaches for months after I got it and I ended up having to change out some of the pads to give me more room. A second thing I'd like to mention is how good the cutouts for communicators are on the triangle helmet. Not only are they recessed deep enough that any communicators speakers should be nearly flush but they even have cable management built in. Again, the icon air flight loses here because although it does have very shallow indents for speakers (I mean so shallow the velcro fills them) The helmet is so narrow that it presses them into your temples, also for whatever reason they were way farther back then mine or anybody I know is ears and I had to move them way forward so I could actually hear anything. The triangle helmet lets the speakers be almost flush with the side of the helmet but it also has extra padding around them. That really keeps the sound of your speaker contained so you can hear it clearly. Moving on from the topic of hearing your communicators. It's a whole lot easier to hear my communicator with the triangle helmet because it's so much quieter than the icon air flight. Look, I know the icon air flight is not known for being super quiet but even after the seal mod (adding a gasket across the top seal to prevent whistling at high speed when the shield is down) I would probably be underestimating to say the triangle is half as noisy at interstate speeds as the icon is. I will however say that with the clear outer shield up the triangle tends to whistle around 45 mph but the inner shades on the triangle actually sealed to the front plate making it quiet and keeping everything out so I've actually ended up taking the clear shield off and keeping it in my in my bag in case I get caught out at night (triangle if you make replacements for the integrated shades in different colors, let me know because I would love to buy some, transitions would be amazing but I would settle for a yellow if it could swap out easily) Moving on from the wind noise making me deaf as the speakers dig into my head on the icon, comfort... This is normally where cheaper helmets fail I've had a few cheap helmets and the liners are always terrible. Usually some kind of mesh that feels like a brillo pad and pulls my whiskers but whatever triangle is using here is amazing It's some sort of quilted athletic fabric on top of memory foam (like actual memory foam, you press your hand in and it leaves a print that takes a couple seconds to go away) not only the fabric softer than what icon is using but the foam feels way nicer too (It does feel weirdly stiff and crunchy if it's cold though, although it seems to be extra soft after it warms to body temp) on the subject of temperature I was afraid this helmet would be hot and with the clear face shield down it can be (again the drop downs seal so the clear shield's unnecessary anyway) the vents on the jawline move a crap ton of air and It can actually draw an error above the drop downs and I can feel it moving all the way to the back over the top of my shaved head. It looks like it has a MIPS system but I don't believe it does and they don't advertise it as such. So I think that's actually some type of ducting to let the air flow all the way around your head and it works really good even though there are no obvious vents. I also love the ratchet mechanism on the clasp. At first I didn't trust it, but I actually put a foot in the helmet and pulled as hard as I could and it didn't break (My neck would probably break first) It seems like if enough force was applied to break it, my neck would go with it anyway so it wouldn't be my problem anymore but it is freaking amazing compared to the d-rings I'm used to takes like less than a second every time and I can put it on and take it off easily with gloves (I have it adjusted a bit too tight so that every time I put it on I'm actually adjusting the proper tension) also the nice red pull tab for removing. It is normally tucked away so I don't think it could possibly get pulled in an accident but it would make the helmet way easier for EMTs or somebody to remove if it needed to be. I'm going to throw it out there as not really positive or negative, but when I ordered it I was a little concerned that the very aggressive. Looking visor window might restrict my vision but because the helmet is so round and the visor is so close to my eyes, I actually have a better field of view than I do with the icon. The chin bar is close enough and low enough that it disappears after a a couple minutes (only the very center sticks up high enough to be seen) but also because it seals up against the bottom of the sun glasses. There is no glare underneath the shades like my icon. Although I have heaps of praise for this helmet, it's not 100% perfect. The slide controls are my main issue, It is extremely easy to accidentally disconnect one side of the chin bar while trying to open or close the drop down shades and while I'm talking about the drop down shades although I like the mechanism better than what icon is using (doesn't rattle or bounce) I'm not a huge fan of the actual slide itself not only is it a bit stiff and hard to work with gloves, but it's also right below the only flat spot on the side of the helmet that is practical to mount a communicator meaning depending on the wiring setup of your communicator you'll be getting your cables tangled in it as you fumble around with your gloved hands trying to get it up or down. While I'm mentioning the communicator and downsides together, I should also mentioned that the inside of the chin bar is made out of a very slippery feeling plastic and even though there is a recess for your microphone (perfect size I might add) the plastic was too slippery for the adhesive on the velcro pads for my microphone (Yes, I use alcohol wipes beforehand and everything) I ended up just hot gluing the velcrov pad to it and that has been working fine for over a month, but it is something to note that you might want to scuff it up with sandpaper or something first. My third and final complaint is yet again to do with the chin bar(So if you're removing it It's basically a 10 out of 10) but I have a very native American Jewish nose and although it's not uncomfortable, my nose does just barely touch that front bar (It literally fits in the pocket that is labeled cyail) Overall I gave it a five star rating but it would probably be a 9 out of 10 if we were able to be a more precise. The only thing I would change if I was redesigning it would be the position of the slider that operates the sun visor and maybe selling some additional visors or chin bars for customization?
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Reviewed in the United States on July 21, 2023 by zoomzoom870