Category 4 sunglasses
Category 0, category 1, category 2, category 3 or category 4? When it comes to shielding your eyes from the sun, selecting the correct lens category is essential, particularly in extreme light conditions. Category 4 sunglasses stand out for their ability to deliver maximum protection, making them ideal for highly reflective environments such as glaciers and high-altitude terrain.
Read more Show less
-
Recommended price
£136.21
-21%
£107.07
-
Recommended price
£84.51
-21%
£66.65
The Julbo Camino BLACK MATTE SPECTRON 4 sunglasses for men feature category 4 photochromic lenses, ideal for sunny weather, and offer a peripheral field of vision.
-
Recommended price
£89.21
-25%
£66.65
-
Recommended price
£89.21
-25%
£66.65
-
Recommended price
£178.51
-21%
£140.91
-
-
Recommended price
£65.71
-21%
£51.61
The Julbo Whoops Black J400114 are the perfect sunglasses for thin faces/women, who are looking for a covering model for their sporty outings.
-
Recommended price
£122.11
-25%
£91.09
-
-
Recommended price
£150.31
-25%
£112.71
-
Recommended price
£140.91
-25%
£105.19
-
Recommended price
£89.21
-25%
£66.65
-
Recommended price
£108.01
-26%
£79.81
-
Recommended price
£108.01
-20%
£85.45
-
Recommended price
£89.21
-40%
£53.49
-
Recommended price
£136.21
-24%
£102.37
INCLUDED
DAY RETURNS
Fixed costs
-
Recommended price
£136.21
-21%
£107.07
-
£56.31
The Izipizi Zenith L Cat.4 Hazel Crystal Mountain sunglasses are perfect for all your adventures thanks to their side shields that offer great protection.
Extra 10% off
-
Recommended price
£84.51
-25%
£62.89
-
-
Recommended price
£211.41
-24%
£158.77
-
Recommended price
£211.41
-24%
£158.77
-
Recommended price
£89.21
-25%
£66.65
Loading...
For all your mountain pursuits: glacier walking, hiking, skiing, trekking, mountaineering!
Designed to deliver superior protection in extreme brightness, category 4 sunglasses are the go-to choice for activities such as glacier hiking, ski touring, trekking and mountaineering. At altitude, the thinner atmosphere filters fewer UV rays, increasing the risk of harmful exposure. In addition, snow can reflect up to 80% of UV radiation, amplifying its intensity. Glacier sunglasses, in particular, feature lenses and side shields to block light from every angle, significantly reducing the risk of photokeratitis – essentially sunburn of the eye. Whether you’re summiting snow-covered peaks or crossing sun-exposed rocky ridges, choosing eyewear suited to the ambient light intensity is vital to protect your eyes and enhance your experience. By including category 4 sunglasses in your kit, you ensure optimal UV protection and exceptional visual comfort, allowing you to fully focus on the adventure ahead.
For men, women and children: category 4 sunglasses for everyone
Protection from intense brightness is crucial for all, regardless of age or gender, especially in environments with strong solar reflection. Category 4 sunglasses provide the highest level of protection against glare, making them essential for both men and women engaging in high-mountain activities, and equally important for younger adventurers. These models, often boast advanced features such as polarised lenses or photochromic lenses, reduce reflections and adapt to varying light conditions, maximising visual comfort. Specially designed to be comfortable and impact-resistant, category 4 sunglasses, also available for babies and children, are essential to safeguard developing eyes from potential damage caused by intense sunlight exposure.
Top category 4 eyewear brands: Julbo, Vuarnet, Bollé, Cébé and more
When it comes to choosing category 4 sunglasses, several brands stand out for their quality and commitment to providing superior protection against intense brightness. Julbo, Vuarnet, Bollé and Cébé are among the most renowned names in this field, offering a wide range of eyewear designed specifically for extreme environments.
Julbo is renowned for its innovations in mountain and sports eyewear, offering advanced technologies such as photochromic lenses that adapt to changing light conditions. Their category 4 sunglasses range is particularly suited to high-altitude activities.
Vuarnet, the iconic French brand, is famous for its high-quality mineral lenses that deliver exceptional optical clarity while blocking 100% of UV rays. Their category 4 models are especially popular for high-mountain expeditions.
Bollé combines style, comfort and performance in its eyewear, with particular attention to impact resistance and UV protection. Their category 4 models are designed for extreme sports and outdoor pursuits, offering robust and reliable protection.
Cébé, a specialist in sports eyewear, produces ergonomic and durable designs ideal for adventure enthusiasts and professional athletes alike. Their category 4 sunglasses are built to withstand the harshest conditions while providing optimal protection and comfort.
Category 3 or 4: which sunglasses should you choose?
The question of whether to opt for category 3 or category 4 sunglasses often arises among those seeking the highest level of eye protection.
Category 3 sunglasses are suitable for most bright-light situations, effectively filtering between 82% and 92% of visible light. They provide sufficient protection for driving and everyday outdoor use in sunny conditions.
By contrast, category 4 sunglasses take protection a step further by filtering between 92% and 97% of visible light, making them indispensable in extremely bright environments such as glacier expeditions or high-altitude climbs where glare is intense. However, they are not suitable for driving.
Are category 4 sunglasses unsuitable for driving?
Choosing the correct lens category is crucial for safe and comfortable driving. Category 2 and 3 sunglasses are ideal, filtering between 57% and 92% of visible light to provide effective glare protection. However, it is important to note that category 4 sunglasses are not allowed for driving as they block too much light, reducing visibility and the ability to perceive road signals, particularly in low or variable light conditions. For a better driving experience, consider polarised lenses that cut glare reflected from horizontal surfaces, enhancing both safety and visual comfort.
Need advice? Trust Glisshop’s experts!
If you’re unsure which lens category best suits your needs, don’t hesitate to contact our experts. They’ll be happy to guide you towards the most suitable pair of sunglasses and lens category for your needs.