#color_Army / Gray with Spectron 4 Polarized HD lens
#color_Army / Gray with Spectron 4 Polarized HD lens
#color_Blue / Pink with Spectron 4 lens
#color_Blue / Pink with Spectron 4 lens
#color_Black / Black with Spectron 4 lens
#color_Black / Black with Spectron 4 lens
#color_White / Brown with Spectron 3 Polarized lens
#color_White / Brown with Spectron 3 Polarized lens
#color_Black with Spectron 3 lens
#color_Black with Spectron 3 lens

Slack Cover

$129.95
SKU: J5879545
Color:Army / Gray with Spectron 4 Polarized HD lens

Slack was already a vibe, but Slack Cover takes it up a notch—or a few thousand feet. These lightweight, super-comfy sunglasses have removable side and bridge shields that transform them from retro-cool to summit-ready in seconds. The bold double-bridge design keeps you looking sharp, while the SPECTRON HD Polarized lens option boosts contrast, amps up color, and cuts eye strain, so you’re comfortable all day long. Whether you’re hitting high-altitude trails or just rocking the vintage look, Slack Cover has your back—and your eyes.
  • Removable Protection: Easily customize your Slack with removable bridge and side shields making them the most protective and customizable sunglasses on the market.
  • Grip Tech Temples: Soft, rubberized temples offer comfort and perfect grip.
  • Curved Temples: Ergonomic profile is comfortable on the face and grips the head.
  • Bio-Sourced Rilsan: Made with materials derived from castor beans, this frame is lighter, stronger and more environmentally friendly than frames made of traditional plastic.
  • 100% UV Protection: Julbo lenses block 100% of UV a, b, & c rays.
  • Size: Large
  • Sunglass Width (mm):  138
  • Lens Height (mm): 45
  • Bridge Distance (mm): 20
  • Temple Length (mm): 135
  • Base: 6
  • Lens Width (mm): 52
  • Age: Adult
  • Weight: 22 g

Need Help?

Having trouble deciding which sunglasses or helmets are right for you, we can help!

Our NEW Eyewear Finders can help you determine the perfect sunglasses or goggles. You can find them HERE.

If you want to learn more about our REACTIV Photochromic Lens Technology you can find information on REACTIV sunglass lenses HERE.

You can find additional information about our REACTIV goggle lenses HERE.

For general questions check out our FAQ's.

For any additional questions you can contact our customer service at info@julbousa.com or by phone at 800-651-0833.

Removable Protection

Easily customize your Slack with removable bridge and side shields making them the most protective and customizable sunglasses on the market.

Grip Tech Temples

Soft, rubberized temples offer comfort and perfect grip.

Curved Temples

Ergonomic profile is comfortable on the face and grips the head.