Heron Mountain Rx Black

Heron Mountain Rx



Color Black

Delivery within 30 days

  • Free Express Shipping
  • 2-year warranty
  • Secure Checkout
  • 1 kg Plastic


Heron Mountain Prescription (Rx) model. Classic alpine sunglasses made for the mountains. They minimize glare, block wind, and protect from harmful UV rays which reduces eye strain and allows you to climb the mountain in both comfort and style. The Mountain version comes with Cat. 3 lenses, offering greater visibility in alpine environments and are best suited for hiking and general mountain activities.

The price includes prescription lenses, tracked express shipping, and a 2-year warranty.


  1. Place your order for a VALLON Rx product.
  2. Receive an email from us with a request for your prescription.
    (Note: the only corrections that are taken into consideration are the Spherical and Cylindrical (astigmatism) corrections).
  3. Reply back to our email with your prescription attached.
  4. Receive your new VALLON Rx (prescription) product within 30 days of order approval.

For any other questions about the ordering process learn more here.


All prescription lenses are custom-made by a professional optician. Please note it is therefore not possible to return any prescription products.

In the rare case that the prescription has an error we will remake the sunglasses for free. Learn more about our warranty terms here.



Maximum protection lenses

The Cat. 3 lenses from Essilor are finished with their proprietary Crizal® technology. They feature double-sided anti-reflective UV395 protection (100% UV protection), anti-scratch, and hydro-oleophobic coatings to shield from dirt and water. With an ABBE value of 41, they offer superior clarity for sports prescription lenses.


Industry experts since 1976

Our partner for prescription lenses are the respected Oogappel Opticians. Based in the historic Museumplein of Amsterdam, they have been servicing the eyewear industry for decades, and continue to uphold the highest standards of optical excellence.

Prescription FAQ

We currently only offer Rx lenses for the Howlin' and Heron collections.

Spherical -8.00 cyl +2.00 and Spherical +4.00 cyl +2.00.

The only corrections that are taken into consideration are the Spherical and Cylindrical (astigmatism) corrections.

No, we do not currently offer photochromic lenses.

No, we currently do not offer bifocal, varifocal, or progressive lenses.

No, we do not currently offer lenses with a prism correction.

Yes. VALLON Rx (prescription) lenses are built with Cat. 3 / Cat. 4 lenses, finished with Crizal® technology. These lenses are developed with double-sided anti-reflective UV395 protection (100% UV protection).

VALLON Rx (prescription) products do not block harmful blue light from devices such as LED screens. However, the blue light found in natural light is not harmful to the eye.

No. Glass (mineral) lenses are not currently available in VALLON products. Glass and mineral lenses are not commonly used in sports eyewear as they are susceptible to shattering, which makes them unsafe for certain sports.

Yes, as long as your prescription is within the range specified.

Yes, as long as your prescription is within the range specified.

Customer reviews

Your cart is empty.