A New Way to See the World: The509 Altitude Helmet

509 Altitude Helmet is the newest addition to 509 helmets’ team. It’s an expertly crafted fusion of style and function. Where nothing else matters, A product made to carry you at that moment.

​509 Altitude Helmet with MIPS & Fidlock

509 Altitude Helmet with MIPS & Fidlock

It has been brought up with all features and also a bit of various design as compared to. It’s more and somewhat less voluminous, we’ll explore!

This helmet is undoubtedly if you are into sleds and snowmobiles.

What Could You Love About the 509 Altitude Helmet?

This helmet structure has been made to be voluminous still function the purpose of protection like it was used to do in prior models.

The face guard’s flexible inner layer is a additive feature which can be corrected in accordance with conditions and the weather to accommodate the neck region and the face.

Expect support into the neck at balance because of the aerodynamically sound arrangement changing the rider’s attention .

Salient Features

Let’s observe how this version goes round the basic pillars for a excellent helmet that is normal and also some of those stand out features to check for within this particular helmet.


The casing is made up of high quality polymers and it is derived from Polly metal with the consent of both Department of Transportation (DOT) USA along with Economic Commission for Europe (ECE). You have nothing to be worried about this.

Now you have a peripheral vision via a arc of 105° from the midline, which makes you be mindful of everything is currently happening around you.

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By having an abrasion resistant coating and projections which do not exceed 2mm, you have a winner. The abrasion resistance, for example, helps minimize the twisting force during a injury to neck and your head.


The helmet comes with a breath box which aids to remove rancid exhaled air and most of the sizzling through the vents to hold your wearer breathable and the fresh.

It has chin skirt that can be corrected when and as possible in line with environmental requirements and the coldness outside. It prevents the unwanted substances and also the breeze to creep in.

The ventilation aids to keep the things plus in addition, it hinders the goggles to fog up.

Padding and Lining

The inner area includes foam that firmly holds the cushioning material to support the head of the rider. The eyebrow and chin pads have been designed in a way that it’s several voids for the skin.

The chin strap locks together with a patented Fidlock magnetic buckle system that utilizes a magnetic fastener for improved security.

With the force, you’ve the buckle and snap this rendering it easy for you to lock that with gloves on. However strong the lock is attached, you just need to give a slight pull to it.

It has form fit technology that fits you all of the way around your cranium to the way around your jawline.


The sun visor is easily movable with a system to slide it in angles according to the direction of sunlight beams.

Generally, the movability in helmets of the visor is still constricted and is not advised to fix. However, with all the Fidlock, the visor’s handle is highly durable and can even be manipulated with gloves on.

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The inner face guard might be moved upside into the level of the nose and to the degree of their throat area. It helps to look at the wind that is chilling to get inside.

As an alternative of the face protector, the snowmobile helmets need to place on together with goggles. Foam and the inner EPS are far goggle friendly – that the goggles absolutely fit tight and firm on the inner padding of their helmet.


  • Smooth and simple to slide visor with gloves.
  • The interface between your buckle and snap yields a top load immunity that’s certified for both DOT and ECE, also a tech exclusive to Altitude helmet of helmets’ team.
  • It is tricky to open and lock D-room while wearing gloves, but it’s quite easy to utilize Fidlock.


  • The aerodynamic arrangement with a bit of expansion from your back neck area to the chin area can be an issue, feeling a bit uncomfortable initially.

Customer Reviews

The customers are delighted with the functioning of the helmet including all of of the features that the helmet provides.

The chin pads and also also the Fidlock locking system for those straps are.

Though several clients believe that it’s not as great as some competitions, for the large part, the openings and also the venting system function well. In extreme cold conditions for instance, the inside the helmet will not offer you the protection you want. Because this was experienced by a very few, we can’t have a strong opinion on it, nonetheless.

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One aspect that made every customer appeased is the decision to make it open to this market at price of that the 509.

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