A series of adjustable elastic straps keep the glasses in place. They are described as being immovable even in the roughest of scraps with other hounds.
Customers can choose from six different models and three different colours (pink, blue or yellow) and also from sizes, ranging from small for beagles and spaniels, to medium for bassets, right up to large for boxers and labradors.
The firm also offers a special gold frame just for Yorkshire Terriers.
Fashion-conscious dog lovers might also be tempted to buy the glasses as attractive accessories.
But the sunglasses which cost about US$90 are not just an expensive accessory.
They were originally designed to protect mountain rescue dogs from the glare of the sun on snow fields.
"90% of our customers drive soft-top cars and want to fit their dogs up with glasses, but we also have customers who go skiing with their dogs and also those whose dogs have eye problems and must protect their eyes against damage, for example like this shepherd dog and keratitis," added Ms Wilsch-Herold.
Here's the site translated into English.