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Regular price €40,00
Regular price €40,00 Sale price €40,00
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



The 2-4 photochromic lens is one specialand lens that starts as colorazione basic light smoke category 2 and with irradiationone of UV rays generates a reactionone chemistry that allows the lens to darken until it reaches category 4. This particular lens represents a must for those looking for a technical lens that best adapts to all the changes in light that may occur on the way to reaching the summit. The lenses offer protectionone from UV rays. The basic starting color smoke is designed to allow those who use it to adapt to all conditionsone of light. Unlike the colorationone marrone which can only be used on very sunny days.

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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



The 2-4 photochromic lens is a specialized lens that starts with a base light smoke color in category 2. Upon exposure to UV rays, a chemical reaction occurs that darkens the lens up to category 4. This particular lens is essential for those seeking a technical lens that adapts optimally to all changes in light conditions encountered on the journey to the summit. The lenses provide protection from UV rays, ensuring your eyes are safe in varying light environments.


The base color of light smoke is designed to help users adapt to different light conditions. Unlike brown-tinted lenses, which are best suited for very sunny days, the light smoke color of these photochromic lenses makes them versatile and effective in a wide range of lighting scenarios.


Key Features:

  • Photochromic Technology: The lens transitions from category 2 (light smoke) to category 4 (dark) in response to UV exposure, ensuring optimal vision and protection in changing light conditions.
  • UV Protection: The lenses offer full UV protection, safeguarding your eyes from harmful ultraviolet rays.
  • Versatile Base Color: The light smoke starting color provides excellent adaptability to various light conditions, unlike brown-tinted lenses, which are limited to very sunny days.
  • High Performance: Ideal for mountaineers and outdoor enthusiasts who require reliable eyewear that can keep up with the dynamic lighting environments encountered during ascents.


Technical Specifications:

  • Lens Category: 2 to 4
  • Base Color: Light Smoke
  • UV Protection: Yes
  • Compatibility: Designed specifically for the Makalu model



  1. Adaptive Vision: The photochromic lenses adjust seamlessly to changing light conditions, providing clear and comfortable vision from dawn to dusk.
  2. Eye Protection: With complete UV protection, your eyes are shielded from harmful rays, reducing the risk of long-term eye damage.
  3. Enhanced Versatility: The light smoke color ensures that the lenses are suitable for a wide range of lighting environments, making them perfect for variable weather conditions.
  4. Optimal Performance: Whether you're climbing a mountain or trekking through varied terrains, these lenses deliver consistent performance, ensuring that your vision remains sharp and clear.


Upgrade your Makalu model with these photochromic replacement lenses and experience the ultimate in adaptive eye protection and visual clarity. Whether you're facing bright sunlight or overcast skies, these lenses will adjust to provide the best possible vision, allowing you to focus on your adventure.