Avalanche UpSlope

Avalanche Upslope - Switch between different sun lenses including prescriptions lenses with the magnetic interchange system from Liberty Sport.
The Avalanche UpSlope performance lenses seal off stray rays of light that can impede vision, but allow air to flow through the vented nose pad and across the eye to limit fog build-up. Temple tips have a 3D shape that holds the sunglass behind and below the ear, and they're encased in TPR rubber to minimize slipping. The colors and curves of the Avalanche winter sports sunglasses are rich and aggressive, giving you a colossal view that expands your horizons. The Upslope lens will fit larger faces and provides excellent light coverage from above, behind, and below.

RX Prescription available through your Optical Retailer.

The Avalanche seals off stray rays of light that can impede vision, but lets air flow through the vented nose pad and across the eye to limit fog build-up. Temple tips have a 3D shape that holds the sunglass behind and below the ear, and they're encased in TPR rubber to minimize slipping. Avalanche's colors and curves are rich and aggressive, to give you a great look along with top performance. The Upslope lens will fit larger faces and provides excellent light coverage from above, behind and below.

  • Available in Polarized and Non Polarized options
  • 1 Magnetic Interchange Chassis
  • 1 Pair of lenses (Polarized or Non Polarized)
  • 1 Pair of low-light Rose Amber Lenses
  • 1 Microfiber cleaning pouch
  • 1 Lens pod

View Lens Simulator

  • Matte Black/True Color Grey Reflection Silver
  • Dark Tortoise/Contrast Amber Reflection Bronze
  • Gunmetal/True Color Grey Reflection Silver
  • Cobalt Blue/True Grey Reflection Blue

Additional Lens Options:

  • Driver Lens - low light lens amber
  • Golf/Tennis Lens
  • Ski - low light lens
  • Trail - low light lens
  • Grey with Silver Mirror Sun Reader
  • Brown with Bronze Mirror Sun Reader

Magnetic Interchange Lens System - Switch uses high-energy magnets embedded in the lens and frame to enable users to swap lenses quickly and easily as light conditions and activities change.

The sizing is the official measuring standard for all frames:

Size:ADBLTL
 66.000017.00135.00
  • A = the horizontal measurement of the lens
  • B = the vertical measurement of the lens
  • ED = Effective Diameter defines the minimum diameter lens that will fit a frame when the geometric center of the lens is exactly centered in the frame.
  • DBL = Distance Between Lenses or the bridge size
  • TL = Temple Length
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Avalanche UpSlope

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Although Liberty Sport sports eyewear is designed to offer the best possible protection during certain sporting activities, there is always the possibility that the wearer may sustain an eye, face, or other injury due to impact or because of the nature of the athletic activity. If the frame incurs an severe impact it must be replaced. If the frame is neglected or misused, or is worn improperly, the degree of eye protection provided may be reduced and may result in permanent eye, face, head, or other injuries. Neither the designer, manufacturer, nor Liberty Sport Inc. claims their sports eyewear is unbreakable or eliminates the possibility of injury.

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