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  • Kask Vertigo Helmet
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KaskVertigo Helmet

Temporarily Out Of Stock

Item # KSK0001

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Get comfortable, ride faster.

Pull on the KASK Vertigo Helmet, marvel at the way the Up 'n' Down retention system cradles your cranium, buckle the chin strap, and set out on your ride. Kask's self-adjusting lateral divider means you won't need to make any adjustments under the ears -- the divider does it automatically. The Eco-Leather chin strap is washable, anallergenic, and phenomenally comfortable. Between the perfect fit, and the feathery 270 gram weight, you'll nearly forget your'e wearing a helmet.

  • In-mold technology with inner strengthening frame makes the Vertigo incredibly strong while reducing weight
  • Non-slip gel grippers on the Up 'n' Down adjustment system ensure everything stays in place
  • 3D Dry Padding is comfortable, and extremely breathable for long days in the saddle
  • Reflective stickers increase visibility to motorists

Tech SpecsSize
Tech Specs
[shell] polystyrene, [strap] nylon
Adjustable Vents
Fit Adjustment
Up 'n Down, chin strap
CE EN 1078, CPSC 1203, AS/NZS 2063
Recommended Use
cycling, racing, training


Vertigo, K50 EVO, K50 MTB
Head Circumference

18.9 - 22.8in

(48 - 58cm)

23.2 - 24.4in

(59 - 62cm)

K10 MTB, K31 Crono, K10 Race
 One Size
Head Circumference

20.9 - 24in

(53 - 61cm)

How to Measure:
Measure around your head where your hat would fit comfortably.

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Avg. ride time: 1h 2m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Compare to Giro or Bell L runs small

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: Large

This is a fantastic helmet. Pros: fits snugly and comfortably; chin strap and adjustment near ears requires little to no hassle to get it to fit right. Good ventilation; great styling. Feels good and covers a lot of the head. The rear adjustment with the up and down is great.
Cons: Runs small, so if you are used to a Bell or Giro and you wear a headband or cap, if you have a big head, you may be out of luck. The up and down adjustment is great, but it can interfere with your sunglass temples, depending on how far they go back. Not a big deal, but you will have more contact points of your gear on your head. Lastly, the vents are not great for storing your glasses on your head securely. The Giro Ionos and some Bell helmets (Sweep?) had better placed vents for that.

comfortable helmet

  • Familiarity: I've used it several times

Before the trip, I already have the Giro, catlike helmet and compared. Kask more suitable for my haircut, helmet and head of the fit is high, very comfortable, so that kask more suitable for Asians and Giro, catlike is more suitable for Europe and the United States race

comfortable helmet

Great helmet

  • Familiarity: I've used it once or twice and have initial impressions

Outstanding quality helmet. Fits small so order a bigger size.

Great helmet

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Large

As a sole Giro user before this Kask, I was a little nervous. The adjustment in the back is similar. The main difference is the up and down adjustment and grippers. It felt wierd, but doable. After 1 minute of adjusting it, it became the most comfortable and stable helmet i've ever had! I like the chin strap is comfortable and easy to adjust. No need to adjust the strap under your ears, either. Venting seems good and consistent with my top-level Giros. I don't put my glasses in the vents, so I cant speak to that. Cant wait to take it out this weekend for a long group ride. Bought a large because I wear headbands to keep warm in the winter.

Great fit

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Medium

This helmet fits great. Easy to dial in exactly like you want it. Sunglasses..not so much. I have Oakley jawbones. A train wreck. I've tried maneuvering the adjustment in the back which sort of helps. I like the helmet but the sunglasses fit is an issue.

Also interferes with Rudy Project Rydons. It's a bummer.

The helmet is nice. Backcountry=awesome!

  • Familiarity: I've used it once or twice and have initial impressions

Love the helmet. Looking forward to some serious riding.

But, Backcountry was great. Had to return a previous helmet because it didn't fit. They were great on the phone, excellent with the return, and made sure I got the best deal on the helmet that fit.

Highly recommend this great online site.

Avg. ride time: 9h 20m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Perfect Road Cycling Helmet

  • Familiarity: I've put it through the wringer

I am an avid road cyclist and this is by far the best helmet I've ever worn. It is not only very stylish...but it is also very comfortable. It has padding in all of the right spots and I love the faux leather chin strap (easy to wipe clean) the rear adjustment dial is easy to use and you may even fit your ponytail through. As for sunglasses...I have Oakley Radar fine with helmet and you can place them upside down into the vents on top of your helmet until ready to wear (no problems) Overall I'm extremely happy with this helmet and highly recommend.

Avg. ride time: 6h 6m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Disappointed...doesn't fit with glasses

  • Familiarity: I returned this product before using it
  • Fit: True to size
  • Size Bought: Medium

I really wanted to like this helmet. It was incredibly comfortable when I put it on, but the happiness was fleeting...I ran into the problem another reviewer described with sunglasses. The retention system of the helmet sits right in the path of the arms of every single pair of glasses I own. Sending it back now...

Avg. ride time: 5m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Perfect fit

  • Familiarity: I've used it several times

used the chart and ordered a size M awesome fit, adjust in most directions and the vents work well, I did not have an issue with my glasses, but this was just a personal experience, found them to be one of the most important and best purchase ever.

My Primary Road Cycling Helmet

  • Familiarity: I've put it through the wringer

I have a quiver of helmets that I use for road riding - both triathlon training as well as competitions. If I am on my road bike, and not on my tri bike, then I am using my Kask Vertigo (mine flies the Italian colors). Overall, I really like the helmet. If you could try on road cycling helmets before purchasing, this is one you'd want to try on. Problem is, you don't find many Kask helmets in shops. You mostly find them online. So trying this one on really isn't an option.

Why do I raise the issue about trying on this helmet? You are going to see in many comments that most people focus on the retention system in the back of the helmet. This retention system is a set of sticky pads that sit on a skeletal framework that grip the back, lower portion of your skull. Once you have the pads properly positioned, you then twist the knob to cinch it down. If you've got a big noggin like me, getting the sticky pads over the back of your head can be difficult. If you wear a headband under your helmet, then you are going to have even more of an issue getting these pads in the right spot. But if you can get it on, I've found the fit to be terrific. Honestly, I love the helmet and it is terrificly ventilated for hot, summer riding.

Overall, I really liked the purchase.


  • Familiarity: I've put it through the wringer

I was super excited to get this helmet. I was long over due for a new helmet. I had been riding the Giro Air Attack and while it is a fantastic helmet and fits my head very well it is too hot to wear during a Phoenix summer. When I first put on the Krask I was amazed how well it fit and how easy it was to get snug on my head. I went out on my first ride thinking I am going to love this puppy!!! My bleeping glasses would not fit onto my ears. I wear prescription sports glasses and I could not get them all the way back on my ears so that they were snug against my head. The ear part of my glasses kept coming up against the retention system of the helmet. For the next several weeks I tried anything I could to get them to fit well. Can you imagine how annoying it is to be riding along and have to keep pushing your glasses back up against the bridge of your nose? I could not even do that. Finally, I just gave up and thought to myself, what a waste of a couple of hundred dollars and what a piece of crap helmet. How is possible that the designers of this helmet not realize this was a problem. I read a ton of reviews online and even seen you tube videos that discuss this issue of glasses fitting correctly. I am so disappointed. I have been riding since 1985 and this is the first helmet that I have not worn for at least a few years before getting a new one. This one did not even last two months on my head.

Avg. ride time: 1h 37m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Great Helmet

  • Familiarity: I've used it several times

I have had a few helmets dating back to my first Greg Lemond Giro Helmet when we first started riding with helmets. I have had a Rudy Project "Slinger" and most recently a Giro "Atmos." After I put the Vertigo on for the first time, I knew right away that is was a great helmet. I barely noticed that it was on my head when I was riding. The rear strap grips the lower part of your skull so it gives a snug fit more like a hat. As the sales guy mentioned as well from Competitive Cyclist, "when it gets to this level of helmet it is about style." This helmet also looks great on your "cabeza" as well, so you are styling on the road.

As Advertised

  • Familiarity: I've used it once or twice and have initial impressions

I just purchased, received, and put this helmet to the test. I read the other reviews and was pleased to see that the fit was as described (runs a bit small). Also, my Oakley Path's fit perfectly with no issues both in use and placed on top of my helmet. I realize some other customers did not have the same luck for whatever reason. Not sure what the difference is but I have no complaints. As a matter of fact I have no issues at all with this helmet or the price. This is a product where you get what you pay for in my opinion. My last helmet was a Giro Aeon size M 55-59. No fit problems with that helmet either. This helmet is definitely more comfortable and seems to be built much better. I purchased a size L 59-62 per some of the reviews. That recommendation was right on point. CC processed and shipped the order in a timely manner. Very positive experience all around!!

I'll say it this simply....saved my life

  • Familiarity: I've put it through the wringer

I was wearing a Vertigo when I went head first over bars from out of saddle sprint at 32mph last Saturday in Florida state road race championship.. Landed on my head. Helmet cracked in half. I suffered a compression vertebrae fracture but never lost consciousness. Truly believe the helmet saved me from concussion or much worse. Just ordered a new one and wouldn't wear anything else. Super comfortable and battle tested.

Can't say the same for my Dogma 65.1, which snapped into four pieces.

I'll say it this simply....saved my life


Thanks for sharing and glad you are not worse off.

Kask Vertigo - Nero Mat

  • Familiarity: I've used it once or twice and have initial impressions

Looks amazing. Fits perfectly. A couple nice features like the up/down adjustment and reflective chin straps....

But I'm having the same issue with glasses (oakley radar lock) sliding in the just doesn't work. Also the stickers literally started peeling within minutes. They are some sort of foil that have sharp edges (might just be for the nero mat version) and snagged on the inside of the provided helmet bag. Then the next day just touching the helmet with gloves, they would catch on the edges of the stickers. Have repeatedly moved them back in place. It's only a matter of time (like 4 or 5 rides) before they fully peel off.

Overall I'd give a 3.5 if I could. Would be a 5 with vents that accommodated glasses, stickers or decals that didn't peel in minutes and ideally some sort of lazer like aero lid.

Kask Vertigo - Nero Mat
Avg. ride time: 12h 20m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Best helmet ever

  • Familiarity: I've put it through the wringer

This helmet is awesome, I agree with Shannon, it is the Cadillac of helmets. I put mine on and forget it is even there. I like the retention system, it works well and the gel grippers make it comfortable. My Oakley Radars work fine with this helmet, not sure what the other complaint is about. I usually put my glasses on before tightening up the helmet. While the price is a bit more than other top of the line helmets, it felt better on my head than a Giro Ionos and Specialized Prevail.

The Cadillac of Helmets

  • Familiarity: I've put it through the wringer

I have owned many brands of helmets in my cycling lifetime and the Kask Vertigo gets my vote for the most elegant design, comfort and fit. If this helmet were to cost $500 I would still feel the high price is justified. I wear a large in every brand of helmet and the large in the Kask Vertigo fits just like all my other helmets.

"If you have a $10 head, go ahead and wear a $10 helmet" I am not implying that this helmet is safer than others but my old motocross coach used to tell me that. I thought it was appropriate.

Not necessarily for everyone

    Why would a helmet manufacturer that throws a huge amount of weight behind the Sky Professional Cycling Team, not take into account that nearly all of their riders are also Oakley sponsored? What I mean, is that if you are a dedicated Oakley wearer on the bike, then you'll need to look elsewhere for a helmet. I really wanted to like it - I really did. It fits great, is pretty comfortable, and has a great retention system. Unfortunately, I have multiple pair of Oakley Radars and they do NOT fit under this helmet. I was forced to stretch the arms of my glasses to fit over the retention system in the back, and invariably, this caused extra pressure (and eventual pain). In addition, the vents of this helmet will not hold glasses (if you sometimes take them off while riding and need a place to stick them).

    I know that my choice of cycling glasses shouldn't be a reason to abandon a helmet, but I'm far more invested in Oakley than I am Kask. Hopefully this will help others considering this helmet. Back to Giro for me...

    My Oakley Radars and Split Jackets fit wonderfully with the Kask Vertigo AND I put my Oakleys on top of my helmet without them ever falling off. Weird way to review a helmet.

    i just purchased the Kask Vertigo and use Oakleys. No problem with sunglass fit and when I need to take off the shades, I just place them upside down behind my head just below the helmet and above the retention system... stays put.

    I too have problems with sunglasses. Basically every brand I have tried. No Bueno!!