Julbo Bivouak Sunglasses - Unisex

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Show Description

Sporty-looking glasses for extremely bright conditions, like glaciers and the high altitude snow fields. Because they block 95% of visible light, they are way too dark for everyday activities. Don't even think about using them for driving.

  • Frames are Twin Flex.
  • Lenses provide just 5% visible light transmission, excellent for reducing glare from ice and snow.
  • Magnetic side-shields keep you protected from all angles and are removable when not required.
  • Rubber grips on the temples and nose-bridge keep them in position.
  • Flexible temples hug your head.

Tech specs

Show Tech specs
Frame material

TR90 thermoplastic offers good resistance to chemicals and torsion. Propionate is a light, nylon-based, hypoallergenic plastic that's very strong and offers more transparency and gloss than other plastics.

Lens material Polycarbonate
Lens performance

Fixed tints provide a constant degree of darkness. Photochromic lenses adjust to changing light levels. Polarized lenses absorb horizontal reflected glare to improve clarity around surfaces like snow or water.

Fixed tint
Lens width

Refers to the horizontal width in millimeters of one of the frame's lenses.

Nose bridge width

The gap between the lenses, measured at the smallest point.

Temple length

The length of an arm from tip to tip.

Lens height

Measures the height of the lens within the frame, excluding the lens curve.

100% UVB protected Yes
100% UVA protected Yes
Interchangeable lenses

Interchangeable lenses let you change lenses to suit differing light conditions or activities.

Made in Romania