Julbo Slack Cover Polarized Sunglasses - Spectron 3+ Grey, Matt Black

The Julbo Slack Cover stands apart from typical polarized sunglasses by combining a sleek, urban silhouette with high-performance mountain optics. Its Spectron Polarized 3+ lenses cut through glare with surgical precision, while the removable side shields adapt to changing light and style. Whether you're navigating city streets or exposed ridgelines, this frame delivers uncompromising clarity and comfort.

Highlights

• Spectron Polarized 3+ polycarbonate lenses: 11% VLT, Category 3 protection, 100% UVA/B/C blocking
• Lightweight Grilamid TR90 frame with Grip Tech temples and Nose Grip pads for a secure fit
• Removable side shields for customizable protection and look
• Full rim design in matt black with grey lenses, unisex standard fit
• Ideal for everyday wear, water sports, and outdoor activities

In daily use

The Slack Cover feels almost weightless on the face, yet stays put during sudden movements thanks to the grippy temple and nose materials. The polarized filter eliminates harsh reflections from water, wet roads, and car windshields, reducing eye strain and enhancing contrast. When the sun dips or you step indoors, simply pop off the side shields for a more open, casual look. The matt black frame pairs effortlessly with any outfit, making it a versatile choice for both trail and town.

Full specifications

• Lens type: Spectron Polarized 3+
• Lens material: Polycarbonate
• Protection category: Category 3
• UV protection: 100% UVA, UVB, UVC
• Visible light transmission (VLT): 11%
• Polarization: Yes
• Frame material: Grilamid TR90
• Frame colour: Matt Black
• Lens colour: Grey
• Frame type: Full rim
• Fit: Standard / Medium
• Temple technology: Grip Tech
• Nose pad technology: Nose Grip
• Side shields: Removable
• Lens width: 57 mm
• Bridge width: 17 mm
• Temple length: 130 mm
• Lens height: 43 mm
• Intended use: Everyday, water sports, outdoor activities
• Gender: Unisex

Final note

Julbo's heritage in alpine eyewear shines through in the Slack Cover: a no-compromise polarized lens wrapped in a frame that feels at home anywhere. For those who demand both performance and understated style, it's a clear winner.