From the manufacturer

Combining high protection and ultra-lightness, Ultimate Cover reinvents mountain eyewear. A removable, synthetic nose guard and side shields provide optimal protection against the harshest sun, strongest wind, and most bitter cold. CustomFIT Temples with Grip Tech structure and a 3D Nose offer adjustability for a personalized and ultra-secure fit. A wide, panoramic lens gives a modern look that provides protection, a massive field of vision, and visual comfort, allowing Ultimate Cover to help you push your limits all the way to the top.

Features

• 3D Nose Fit: Adjustable nose pads fit any nose shape and ensure all-day comfort and security. (Compatible with Optical Clip Prescription Insert)
  
  
• Comfort Fit with Helmet: Shape, size and features are designed to fit comfortably with any helmet.
  
  
• Cord Attachment: Temples are shaped to work perfectly with a Julbo cord, keeping sunglasses secure in all conditions.
  
  
• CustomFIT Temples: Precise temple adjustability guarantees a perfect fit and secure grip.
  
  
• Full Venting: Multiple large vents in the frame allow for air circulation to prevent fogging.
  
  
• Grip Tech Temples: Soft, rubberized temples offer comfort and perfect grip.
  
  
• Panoramic View: Oversized lens offers a large and unobstructed field of view.
  
  
• Removable Synthetic Nose Guard: Comfortable, breathable, lightweight and easily removable, the synthetic nose guard protects against wind and intense sunlight in extreme environments.
  
  
• Removable Synthetic Side Shields: Soft, lightweight and comfortable side shields block extreme sunlight at high elevations and are easily removable.
  
  
• 100% UV Protection: Julbo lenses block 100% of UV a, b, & c rays.

Specifications

• Large fit
• 135mm Overall width
• 130mm Temple arm length
• Spectron4
  • 5% Visible light transmission
  • Darkest tint for extreme sunlight
  • Polycarbonate lens
• 1 pair Julbo Ultimate cover 
• 1 Microfiber cloth storage bag