Julbo Explorer 2.0 Alti Arc 4 Glasses

The Julbo Explorer 2.0 Alti Arc 4 are glacier/mountaineering sunglasses designed for extreme high‑altitude conditions. They are aimed at mountaineers, guides and alpinists who require maximum UV protection and glare reduction.

Key benefits

• ALTI ARC mineral glass lenses — Category 4, 100% UV protection, VLT 7% for very bright environments.
• Removable side shields (edge cover) reduce peripheral light and protect on glaciers.
• 360° adjustable temples with Grip Tech ensure a secure fit during movement and when wearing a helmet.
• Rubberised Grip Nose and front venting help prevent fogging and improve long‑wear comfort.
• Bio‑based frame material (Rilsan® from castor beans) offers durability with lower environmental impact; frame is prescription‑ready.

Typical use: high‑altitude hikes, glacier crossings and alpine routes in summer and transitional seasons where strong UV exposure and side light demand high protection.