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Mountain Glasses with Photochromic Cat.2a4 Lenses
Regular price €89,90
Regular price Sale price €89,90
Sale Sold out
Tax included. Shipping calculated at checkout.

Shipping free starting from €100 (Valid only for Italy)


In our online store, we offer a wide range of payment options to make your shopping convenient, safe and hassle-free. We are committed to ensuring a pleasant shopping experience for our customers, and to this end, we accept the following payment methods:


Credit and Debit Cards: We accept major credit and debit cards, including Visa, MasterCard, American Express and others. You can rest assured that your transactions will be safe and secure with advanced encryption technology.


PayPal: PayPal is one of the most trusted online payment platforms in the world. You can use your PayPal account to make payments quickly and securely.

It is also possible to select the new optionone PAYAPAL payment in 3 installments.


Klarna: Buy now, pay later at your favorite stores grazie Klarna. At the time of payment it is possible to divide the total purchase into three convenient installments.


Bank transfer: If you prefer to pay by bank transfer, we will provide you with all the banking information necessary to complete the transactionone. Remember that processing timesone may vary depending on your bank.


ATM Pay: ATM Pay is the digital service of the ATM circuit to make instant payments, transfersrimmoney and purchasing institutions – online and in store - simply, quickly and securely via smartphoneone.


Cash on delivery: We offer cash on delivery service, which means you can make payment directly to the courier upon delivery of your order. (€6,00 ​​will be charged for the cash on delivery service).


Satispay: Satispay it is one of the most used online payment platforms in Italy. You can use your account Satispay to make payments quickly and securely.


Apple Pay: Apple Pay is a mobile payment and digital wallet service developed by Apple Inc. It allows users to make payments in stores, within apps, and on websites using compatible Apple devices.


Google Pay: Google Pay is a mobile payment and digital wallet service developed by Google. It is designed to allow users to make payments securely and conveniently using their mobile devices, such as smartphonesone and smartwatch.


We ensure that all transactions occur securely and comply with data security standards. Additionally, we provide a simple and intuitive checkout process to make checkout a hassle-free experience.

Click here for more information and conditions of sale 




You ship itone it is free for amounts over €100,00
NB The standard shipping costone it is €7,90 (Express Courier)
For payment on delivery there is a €6,00 ​​cash on delivery service regardless of the amount.

All shipments to Italy are made via Express courier: UPS o SDA.
Shipping timesone depend on the geographical location of destinationone of the goods.
Generally all shipments to Italy are delivered within 24/48 hours from the time of shipmentone (excluding public holidays).

Every order received by 14.30pm is shipped the same day it is receivedone of the order. (Excluding orders with payment method: Bank Transfer, where you ship itone will take place after the payment has been credited)

For each shipmentone tracking code will be provided via email to be able to track the positionone of the package.



1- You can contact us via the following channels to exercise the right to withdraw or exchange with another item: Site chatEmail: , By telephone on 0445/315537

2- Choose the formula for returning the package: You can choose whether to send the package to us independently with the courier you prefer, or at a cost of Euro 7,90 (rate valid for Italy, for foreign countries different rates will be applied based on the country) with GLS we provide collection service by appointment (Choose the day and morning/afternoon), it will be sufficient to close the box with adhesive tape and hand it over to the courier. (By agreement with the Bigline company)
* In case of product exchange, the redelivery will be €7,90 regardless of the amount of the product
**Excludedone of collections in: ZTL and Zone disadvantaged (where there will be a supplement)

3- Please wait for our receiptone for the rimbag (on the same day of receptionone, in case of return, it will be made on rimbag), or tell us the model and color with which you intend to exchange.

4- Wait for the return (in case of exchange) and have fun with the new glasses DEMON.

For more information on returns click here


Do you want to speak to one of our operators for more information or which product to choose based on your needs?

You can contact us in the way you prefer:

By telephone: By calling the number 0445/315537
Whatsapp: By writing to us at 0445/315537
Instant chat: At the bottom of the page you will find the icon



UV Protection: UV400 (Maximum protection against UV-A and UV-B)
Frame Material: TR90 Ultralight
Weight: 42 grams (Elastic cord and sweat sponge included)
Frame Color: Matt Black Red - Matt Black Blue
Lens Type: Photochromic lenses Cat. 2 to 4
Visible Light Transmission (VLT): 7.06% - 39.08%
Other: Removable sweat sponge
Included Accessories: Elastic drawstring, Hard case, Microfibre case
Sports: Mountaineering, Hiking, Ski mountaineering
Fit: Unisex (Men and Women)
Dimensions: Width: 140mm; Height: 50mm - Rod Length: 125mm; Lens base: 8

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    Possibility of easy EXCHANGE / RETURN within 30 working days


    Fast Shipping


    From Monday to Friday 9.00-12.30/14.00-18.00

Product description




For those who love hiking in high mountains, protecting one's eyes is of paramount importance and cannot be overlooked. The intense glare in high-altitude zones poses a significant danger that must be countered with appropriate lenses to ensure complete safety and enjoyment of the excursion. Using unsuitable lenses can lead to discomfort such as feeling something in your eye or excessive tearing. For maximum protection and performance, DEMON has developed a line of mountain glasses featuring 2-4 photochromic lenses that adapt to any atmospheric and climatic conditions, ensuring optimal visibility.





Photochromic lenses 2-4 are special lenses that start with a light smoke color capable of reaching category 4 during maximum activation. They provide adequate visibility in both strong shade and low light conditions. When exposed to UV radiation, these lenses undergo a reversible chemical reaction that darkens the lens surface up to category 4 as needed. Once UV exposure diminishes, the lens gradually returns to its original state.




These photochromic lenses are specifically designed for the mountains where UV radiation and light intensity are higher. They adjust dynamically to changes in light, ensuring optimal vision whether you're in a shaded area or an open slope. The lenses start with a light smoke veil, eliminating the need to remove them in low-light areas, and transition smoothly to category 2 to prevent glare when exiting shaded zones. The lenses achieve category 4 during maximum activation based on UV and light intensity, ensuring adequate protection without excessively darkening your vision unnecessarily. These lenses meet category 4 standards for extreme expeditions like Everest and K2, providing dynamic light adaptation.




  • TR90 Frame: The mountain eyewear frames are constructed with TR90, a special compound of Nylon and carbon fiber. This material is hypoallergenic, lightweight (20% lighter than conventional materials), and exceptionally elastic and resistant to impacts and strains. It molds to the wearer's face, retaining its shape and comfort even in extreme conditions.
  • Non-slip Rubberized Parts: Made of soft Megol, these hypoallergenic rubberized parts ensure the glasses stay securely on the face, preventing slippage even during intense activities.
  • Sweat Sponge: The high-density hypoallergenic sweat sponge prevents sweat, air, and light from reaching the eyes, enhancing comfort and protection during strenuous activities. It is removable for convenience.
  • Elastic Cord: Included with the EIGER model, the removable elastic band promotes stability and comfort, keeping the glasses secure during challenging conditions and protecting the eyes from wind, cold, dust, and debris encountered on the journey.


  • Width: 140mm
  • Height: 50mm
  • Rod Length: 125mm
  • Lens Base: 8

PACKAGING: All products are shipped in their original packaging. Note that for some models, the color or shape of the case may vary from what is shown.