Protone Icon

Protone Icon

Regular price $300.00
Regular price Sale price $300.00
Color: Black
Select Size Size Guide
Fast Free Shipping
Free & Easy Returns

KASK's Protone Icon is impeccably crafted with a sleek, aerodynamic silhouette, and offers an internal frame for improved rider security. Its sleek design is achieved through seamless integration of the upper and lower parts of the shell. OCTOFIT+ adjustment system helps boost comfort and stability, while a neck stabilizer provides ergonomic support and a personalized fit. Its rubber-coated rotation cap facilitates better finger grip, and a reflective insert in the rear ensures further safety. The inner lining is composed of fast-drying and washable CoolMax® fabric. As with all KASK helmets, the Protone Icon complies with the KASK ROTATIONAL IMPACT WG11 TEST, a scientific method of assessing performance against rotational impacts.

  • Lightweight at 280 grams (size M)
  • OCTOFIT+ retention system for ultimate fine-tune fitting
  • Multiple vents for superior ventilation
  • Refined aerodynamic shape for optimal speed
  • Aero Control technology
  • Vertical stabilizer for ergonomic neck support and enhanced balance
  • Joined internal and external frames for enhanced strength
  • CoolMax® fabric lining draws out moisture and fast drying, removable and washable
  • Faux leather chinstrap
  • High Visibility features
  • KASK WG11, complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older
  • KASK ROTATIONAL IMPACT WG11 TEST protocol compliant
  • Suitable for road cycling
  • Made in Italy
Size & Fit

  • Fits true to size
  • OCTOFIT+ adjustment system for customized, fine-tune fitting
  • M weight: 280g / 9.8oz

    Size Guide

Material & Care

  • Polycarbonate outer shell
  • Wash in mild soap and water
  • Rinse thoroughly
  • Air dry

Brand Info
Established in 2004, KASK is a leading manufacturer of high-quality safety helmets for cycling, mountaineering, horse riding, and rescue safety. Made entirely in Italy and guided by expert engineers collaborating with top-tier factories, KASK has swiftly risen to prominence in the sports and outdoor industry. Their helmets excel in technological innovation, safety, and ergonomic comfort, catering to the demands of elite athletes and providing unparalleled comfort even in the most challenging conditions. KASK's state-of-the-art structure system, achieved through their rigorous ComfortSafetyDesign (CSD) Project, marries the highest safety standards with lightweight construction. The brand's exclusive features and numerous patents underscore their unwavering commitment to quality and safety, earning them prestigious honors such as the ISPO and Eurobike awards.
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Free U.S. shipping

We offer free express shipping on all U.S. orders. Orders are shipped via all major carriers (UPS, DHL, FedEx, USPS) and should arrive within 3 to 5 business days.

Processing time

Most orders are shipped within 1-2 business day. Processing time is in addition to transit/delivery time. Once your order ships you will receive a confirmation email with your shipment and tracking details.


If you order multiple items, you may get multiple deliveries. We’ll send you a shipping confirmation email for each shipment along with shipping notifications throughout transit so you’ll know exactly what to expect and when to expect it.

P.O. Boxes and APO/FPO

At this time we do not ship to P.O. Boxes or APO/FPO addresses.

International shipping

At this time, we are not able to ship to countries outside the U.S.

Possible delays

We do our best to ensure the timely delivery of all orders. Please keep in mind that we are only provided with an estimated delivery date from our carriers and cannot guarantee delivery estimates.


Free 30-day returns on all U.S. orders

If you are not completely satisfied with your purchase or you simply wish to return it, you have 30-days from the day your order was delivered to send it back to us. Returns are complementary and hassle-free. All products must be returned in a new and unused state, in perfect condition, and with all original tags attached.


To make an exchange, visit our portal and enter your order number and shipping zip code. From there, select the item(s) you would like to exchange. If you would like to exchange for a completely different item, please reach out to us.

How to make a return?
  • Click here to start your return or simply log in to your account
  • Enter your order number, email or zip for identification and click “Get Started”
  • Select the items you want to return from your order and select the return reason
  • Select your return credit option: Refund or Store Credit and click “Complete”
  • Download our pre-paid Return Label and attach it to your package (remove or cover any previous shipping labels to avoid shipping delays)
  • Drop off your return at any USPS location. Make sure to keep your receipt
Final-Sale items

Items marked "Final Sale" cannot be returned once purchased.

Refund processing

Returns are processed within 3-5 business days after they arrive at our warehouse. Refunds will be credited to the original form of payment, and a confirmation email will be sent to you once it has been issued. It may take up to 7 additional days for the funds to show in your account.

Late or refused returns

Your item(s) should be sent back to us within 30 days of receiving you order. Returns outside this timeframe may be accepted at our discretion and may only be refunded as a store credit. We reserve the right not to accept returns if the product shows signs of wear or has been used or altered from its original condition in any way.


All shoes should be tried on a carpeted surface and returned in a new, unused condition with the original tags, shoe box, and packaging. Cleats should not be installed on cycling shoes. Returns without a shoe box, in a damaged shoe box, or with scratched soles will not be accepted and will be sent back.


Protone Icon

  • Fits true to size
  • OCTOFIT+ adjustment system for customized, fine-tune fitting
  • M weight: 280g / 9.8oz

KASK Helmet Size Guide - Protone Icon

International (INT) S M L
Head circumference 19⅝- 22⅛" / 50 - 56cm 20½" - 22⅞" / 52-58cm 23⅜" - 24½" / 59-62cm

How to measure my size?
Helmet sizes are based on head circumference. Measure your size by wrapping a measuring tape snugly around the widest possible circumference - from the most prominent part of the forehead (often 1-2 fingers above the eyebrow) around to the widest part of the back of your head. Measure 3 times, and take the largest number. Using the chart above, select your size.