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509 Altitude Poly Helmets – Pink Ops(matte)



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  • Revolutionary neck brace ready shell profile
  • 3 outer shell sizes
  • 6 total sizes: Adult XS -2XL
  • Specially designed thermoplastic poly alloy outer shell
  • Dual density interlocking EPS
  • Custom fit EPS specially designed for North America (intermediate oval head profile)
  • Removable washable premium liner
  • DOT and ECE 2205 certified
  • Special designed expanded polyurethane chin insert
  • Class leading eye port opening dimensions which provide optimum peripheral vision
  • Perfect 509 goggle fit
  • One piece eye port trim
  • 8 total oversize intake/exhaust vents
  • Includes Cold Weather Breath Box
  • Includes Camera Mount (compatible with GoPro® & Reel® Cameras)

509 once again raises the bar with the new 509 Altitude Snowmobile Helmet! This all new 509 helmet is the result of desire to create and innovate the industry’s best snowmobile helmet. The result is a helmet that is designed and built from the ground up with 4 ideals in mind: safety performance fit and style.

Featuring an innovative dual density interlocking EPS foam liner the Altitude helmet provides top crash protection and is certified to meet or exceed DOT and ECE 2205 safety standards. These high safety standards were achieved by the use of a specially designed thermoplastic poly alloy shell that offers maximum strength and minimal weight. To protect the rider from a front impact the Altitude uses a specially designed expanded polyurethane insert in the chin area.

Safety is 509’s #1 focus when designing their helmets. With the development of the new Altitude helmet 509 put an emphasis on safety & quality. First is the dual density internal EPS foam. This provides two innovative levels of crash absorbing protection. Next 509’s industry leading thermoplastic poly alloy outer shell that provides a high level of puncture prevention. The 509 Altitude helmet is covered by not one but two world leading safety standards: DOT & ECE 2205 Certification. Most competitors only offer one level of safety certification.

Goggle performance is directly affected by the fit of the goggles in your helmet. Mixing a different brand goggle and helmet will only result in decreased goggle performance. The 509 goggle and Altitude helmet combo was designed to fit and function perfectly together. Both products were specifically engineered for optimal performance from an industry leading combo fit. The 509 Altitude helmet was engineered from the ground up to provide an improved goggle fit over our previous Evolution shell. Experience the first and only true helmet & goggle combo in the snowmobile industry.

The 9 available sizes from Youth Small to Adult 2XL utilize 3 different sized outer shell molds. By using 3 mold sizes instead of the industry typical 2 molds sizes the 509 Altitude is able to achieve a precise fit while minimizing overall helmet circumference. The helmet is contructed from an innovative new thermoplastic poly alloy outer shell material. This results in a smaller overall shell profile a dialed in fit and the lightest weight possible. The neck brace ready contoured shell base provides a comfortable yet snug feel with unmatched fit and reduced helmet movement. The custom interior EPS features a premium liner that is easily removable for cleaning.

The 509 Altitude helmet performs at the highest level and looks good doing it. The shell features sleek yet aggressive lines that provide an innovative and unmatched look. Everything from the integrated front mouth vent to the innovative ventilation channels to the sweeping upward kicked visor provides a flowing and seamless transition. The 509 Altitude helmet is available in eight different color options each with a unique graphic style.

The 509 Altitude Helmet gives you the ability to dial in the level of ventilation you need. Every rider is different and rides in a wide variety of climates. We understand the need for ventilation customization and designed the Altitude for exactly that. Starting with the all new sleek cold weather breath box that you can add or remove in seconds to dial in air flow through the front of the helmet. Next is the lower removable mesh chin curtain. This prevents wind and snow from entering from underneath the chin area. Allow the forehead brow area are 4 removable internal VentStoppers. These innovative inserts can be added and removed to dial in the amount of air that enters the brow of the helmet. In total the Altitude has 8 oversized intake & exhaust vent ports.

Tired of losing your GoPro® Camera? Let’s face it adhesive mounts frequently fail while snowmobiling. Well that’s a thing of the past. Each 509 Altitude Helmet includes an innovative rigid camera mount that attaches using the top center visor screw. This installs in seconds and eliminates poorly performing adhesive mounts. 100% Compatible with GoPro Hero® and Reel® Cameras. (other camera brands may require an additional adapter if available)

The Altitude breathbox was redesigned from the ground up. It features a slim & sleek profile that allows the breath box to be worn underneath or on top of your 509 goggles. The breathbox installs/removes in seconds and can be custom formed to fit your specific face profile.

The chin curtain is installed in the lower chin area of the helmet (in seconds). This mesh chin curtain prevents unwanted snow and wind from entering from underneath your helmet.


Hat Size 6 1/8 - 6 3/4 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 6/8 - 7 3/4 7 7/8 - 8 8 1/2 - 8 1/4
Head (cm) 53-54 55-56 57-58 59-60 61-62 63-64 65-66
Head (inches) 20 7/8 - 21 1/4 21 1/4 - 22 22 1/8 - 22 3/4 23 1/8 - 23 1/4 24 - 24 7/8 24 3/4 - 25 1/8 25 1/2 - 25 1/8

Junior Helmet

Size S M L
Hat Size 6 1/8 - 6 1/4 6 3/8 - 6 1/2 6 5/8 - 6 3/4
Head (cm) 49-50 51-52 53-54
Head (inches) 19 1/4 - 19 3/4 20 - 20 1/2 20 7/8 - 21 1/8

How to measure

  • For best results, have someone else take measurements.
  • Measure body in underwear.
  • Tape must be snug but not tight.
  • If measurements fall between two sizes, order the larger size.


Without shoes, standing with heels and back against a wall.


Measure under your arm, around the fullest part of your chest.


Immediately below the lowest rib.


Across the fullest part of the seat.

Arm Length

Hand on hip, from center back neck bone, along shoulder point, around elbow to bottom of wrist bone.


Without shoes, from crotch to the floor.


Around your head, from the center of the forehead, above the ears and over the natural bump at the back of the head.

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