







Sunglasses -
The Slack Cover Army/Grey sunglasses Spectron HD 4 Polarized are designed by the Julbo brand for those who love the mountains and their high summits.
They Slack Cover feature the same sleek lines and legendary comfort as the Slack, while adding removableside and nose shellsthat offer extra UV protection for high-altitude activities. In addition, their double-bridge design gives them a resolutely modern and assertive look, while the curved arms ensure a perfect fit, even when the effort becomes intense. The removable shells offer increased protection against UV rays and splashes.
Featuring category 4 Spectron HD lenses offering maximum sun protection, this model of glasses ensures clear, high-contrast vision in all circumstances, ideal for high-altitude activities. These lenses are also polarized to prevent indirect sunlight from passing through, thereby improving contrast and colour.
Another significant advantage is that technologies RX Lab and RX Ready allow these glasses to be adapted to your vision, for an even more personalised experience.
These Slack Cover are versatile sunglasses with a modular design that will suit all sports enthusiasts and adventurers who enjoy reaching new heights.




Glasses SPECTRON HD 4 POLARIZED :
- Light: 7 per cent
- UV protection : 100%
- Colour through the lenses: brown
- Base 6
frame :
- Removable side shells
- Removable nose bridge shells
- Double deck design
- Curved branches
Dimensions :
- Frame width: 138 millimetres
- Glass width: 52 millimetres
- Branch length: 135 mm
- Bridge of the nose: 20 millimetres
| SPECTRON HD 4 POLARIZED | The lenses Spectron HD 4 Polarized offer optimal solar protection and high-quality vision. They reduce glare, improve contrast and colour perception, especially on water. Their hydrophobic treatment and durability make them durable, high-performance lenses. What's more, their polarisation is compatible with screens, making them ideal for water sports and sunny days. |
| RX LAB and RX READY | Fitted to your vision by an optician, the solutions RX Lab and RX Ready are designed for activities outdoors. These frames are compatible with a very wide range of possible corrections. |