Rx Motorcycle Eyewear | Piston frames available with prescription lenses
The Piston Rx protective motorcycle sunglasses are Z-87 certified and built for speed with their magnetic technology. With the ability to have a pair of active lifestyle shades in a matter of seconds, the Piston's removable Powered by Switch™ magnetic eyecups helps protect the eyes from wind, dust, and light flying particles. They also increase the Piston's comfort, grip, and durability, making them the ideal motorcycle eyewear choice.

RX Prescription available through your Optical Retailer.


  • ANSI Z87.1 Certified
  • RX’able Unisex 6-Base frame.
  • Combination Powered by Switch™ Technology temple offers aggressive edge styling
  • Head hugging temple design and adjustable temple tip adds to frame comfort
  • Nosepad material is soft, hypoallergenic and water resistant thermoplastic rubber allowing for increased comfort, grip, and durability.
  • Removable side cups for venting.
  • Plano frame comes with Liberty Sport Sunset Driver premium performance sun Lenses.
  • Rx motorcycle eyewear fit perfectly under helmets, essential for riders who need high performance protective motorcycle eyewear
    • Made for speed and road-ready activities
    • Passes all Global Driving Standards
    • Rose Amber lens with orange hard coat premium mirror coating(Scratch resistant, anti-stain and anti-smudge)
    • 100% UVA & UVB Protection
    • Premium polycarbonate lens which passes ANSI Z80.3 standards while providing UV400 protection.
    • Sunset Driver lens can be replicated in complete Rx
  • Raised eye rim provides additional lens retention.
  • Includes semi-rigid case, adjustable strap, cleaning cloth, and eyecup pouch.


All Packaging includes:

NEW Rider Collection Case and Cloth

NEW Eyecup Pouch

Short Strap

Rider Collection Literature

Frame Sticker:

            ANSI Z87 Certified


View Lens Simulator

  • Clear Lens
  • Sunset Driver Lens
Each lens is laser etched with ‘Z87’ attesting to the lens meeting or exceeding Z87 impact standards as a function of the Liberty Sport 100% Certification guarantee.
Powered by Switch™ TechnologyPowered by Switch™ Technology uses unique magnetic technology combined with skillfully engineered sunglass designs to convert from road ready sunglasses to high performance eyewear in seconds! Features removable side cups for venting.

The sizing is the official measuring standard for all frames:

  • 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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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.