Protone Icon Helmet
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Protone Icon Helmet delivers pro-level ventilation, fit, and sleek protection for fast rides
What Our Gearhead® Experts Are Saying:
"I’ve put the Protone Icon through long rides in high heat and it's one of the best-ventilated helmets I’ve used. It’s featherlight, stays snug with the OCTOFIT+ dial, and doesn’t shift when I turn my head to check traffic. The sleek profile cuts down on drag without feeling race-only."
From hot summer road rides to all-day training blocks, the Protone Icon Helmet from Kask offers unmatched comfort, aerodynamics, and refined style. We count on it for everything from big climbs to group rides thanks to its lightweight polycarbonate construction and a fit system that dials in secure comfort for hours on the saddle.
Kask’s updated design builds on their award-winning Protone line, with improved internal airflow and a reengineered internal skeleton that boosts structural integrity. Inside, Coolmax padding wicks moisture quickly, while the OCTOFIT+ retention system makes fine-tuning the fit intuitive and secure—even with gloves on. The helmet meets KASK’s WG11 rotational impact testing standards and complies with the CPSC safety standard, giving us confidence at any speed.
Details
- Performance road cycling helmet with race-ready ventilation and sleek design
- Refined internal channeling boosts cooling airflow in warm conditions
- OCTOFIT+ fit system allows micro-adjustments for secure, dialed fit
- Coolmax interior padding dries fast and pulls moisture away from skin
- In-mold polycarbonate shell with EPS foam for lightweight impact protection
- Meets WG11 rotational impact safety testing standards
- Minimalist profile reduces drag for efficient high-speed riding
- Ideal for endurance training, race days, or long weekend road rides
- Item #KSKZ00J
- Shell Material
- polycarbonate, EPS foam
- Ventilation
- 14
- Fit Adjustment
- OCTOFIT+
- Visor
- none
- Certifications
- KASK WG11, Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older
- Claimed Weight
- [medium] 8.1oz
- Activity
- road cycling
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 23 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
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Selecting an option will reload the available reviews on the pageNovember 1, 2025
Great helmet!
- Familiarity:
- I've used it several times
- Size Bought:
- M
Feels super light but still gives great coverage.
September 8, 2025
Kask helmets rock
- Familiarity:
- I've used it several times
I own a few Kask helmets. I like them a lot. The adjustable sizing enable me to wear the helmets in the winter over fleece lined caps and then on the hot AZ summers I can tighten the adjuster for a snug fit.
Originally reviewed on Competitivecyclist.com
June 28, 2025
Really nice but need more rides
- Familiarity:
- I've used it once or twice and have initial impressions
Helmet feels comfortable with adequate padding. Strap is nice and easy to adjust. Appears to have a good conformance to the head profile. Just unsure yet when I look over my shoulder and the helmet seems to sway. More adjustments and tweaks; we’ll see how it goes, but so far do like the helmet. Good ventilation as well.
Originally reviewed on Competitivecyclist.com
June 22, 2025
Really great product
- Familiarity:
- I've put it through the wringer
- Height:
- 6' 1"
- Weight:
- 180
Very comfortable, great air flow, great fit, lightweight, adjustable straps, easy to adjust, really no complaints. Really well thought out product, worth the extra money, I ride in the Arizona heat and this helmet has been my favorites by far.
June 20, 2025
Channels sweat right into your eyes
- Familiarity:
- I've put it through the wringer
Comfortable, well vented, high quality helmet that’s pretty much unusable in warm weather or hard efforts. I’m not a particularly heavy sweater and have never had a helmet that is so bad for sweat management. It could be great, but now I’m looking for a replacement and this will have to be reserved for coffee rides or cold weather.
Originally reviewed on Competitivecyclist.com
June 19, 2025
Great Helmet
- Familiarity:
- I've used it several times
- Size Bought:
- Large
Lightweight and comfortable
June 10, 2025
Rear padding falls out
- Familiarity:
- I've used it several times
Overall a great fit and nice looking helmet. However, the two pads on the rear, on either side of the tightening wheel, are loose and have come out several times. It doesn't appear anything holds them in place other than being squeezed into the small channels. Have only had this for a couple months, so not sure how everything else will hold up long-term. Also, I don't see where this is a replacement part I can purchase for when it is eventually lost for good.
Originally reviewed on Competitivecyclist.com
May 29, 2025
perfect fitt
- Familiarity:
- I've used it several times
i bought this months ago.. it was perfect fit to my head not bulky and very comfortable helmet highly recommend
Originally reviewed on Competitivecyclist.com
May 27, 2025
Sweaty but Comfortable
- Familiarity:
- I've used it several times
I really like the look of the Kask Protone and was excited when they released this updated version having had issues with sweat dripping down behind my glasses in my older version. Unfortunately, despite the claim of better air flow, they haven't fixed this issue. I'm not a super sweaty guy but for some reason these helmets just don't work for me (or the others in my group). I'd say this is borderline unusable for me personally. I may have to reserve this for winter riding. On the upside, it's super comfortable, the chin strap is great and the micro-adjustment works very well.
April 27, 2025
Light, Sleek, and Perfect Fit
- Familiarity:
- I've used it several times
The **Kask Protone Icon** is an absolute dream helmet! It’s **super light**, so it almost feels like you're not even wearing it — seriously, it’s that comfortable. The **ventilation is top-notch**, keeping me cool and comfortable even on long, hot rides. The design is **super sleek**, giving it that fast, pro-level look without being over the top. Plus, the **fit is fantastic** — snug where you want it but still super comfy, thanks to Kask’s signature adjustment system that dials in the perfect feel. If you want a helmet that’s lightweight, stylish, and crazy comfortable for every ride, the Protone Icon is the one to beat. Highly recommend grabbing it — you won’t want to ride without it once you try it!
Originally reviewed on Competitivecyclist.com
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