Frame sizing guide
Already wearing a Lucyd? Use this guide to find a smaller or larger frame in the same line.
If you have a Lucyd frame that doesn’t fit quite right, this guide shows what to switch to.
Source: Internal CS team Frame Recommendations crosswalk, updated April 2026. If you’re not sure what to do, contact us and we’ll recommend a frame based on your face shape.
Lucyd Lyte (LCD006)
| Original frame | Too big? Try | Too small? Try |
|---|---|---|
| Darkside | Dash, Dash Slim, Dockside | Velocity, Navigator, Nitrous (if you like a sporty look) |
| Eclipse | Dash, Dash Slim, Thunder, Thunder Slim, Dockside | Velocity, Navigator, Nitrous |
| Voyager | Eclipse, Commander, Corsair, Jet | Explorer, Voyager XXL, Commander, Corsair |
| Voyager XXL | Navigator, Commander | Antimatter XXL, Jupiter XXL |
| Earthbound XL | Navigator, Dash, Eclipse | Voyager XXL, Antimatter XXL, Jupiter XXL |
| Antimatter XXL | Commander, Admiral, Navigator | Voyager XXL |
| Jupiter XXL | Admiral, Corsair, Navigator | Voyager XXL |
| Millennia | Shine | Explorer, Velocity, Voyager XXL |
| Penumbra | Moonshot, Penumbra | Moonrise, Millennia, Shine, Jet |
| Nebula | (nothing smaller) | Millennia, Moonrise, Shine |
Lucyd Armor (LCD008)
| Original frame | Too big? Try | Too small? Try |
|---|---|---|
| Armor base | Armor Slim | Armor Vantage |
| Armor Slim | (nothing smaller for safety; try an optical instead) | Armor base or Armor Vantage |
| Armor Vantage | Armor Slim | (nothing larger for safety; try an optical instead) |
Reebok Sport (LCD010)
Reebok Sport comes in Voltage, Octane, Flash and Nitrous, plus the Octane Shift and Nitrous Shift photochromic models.
| Frame | Size (eye-bridge-temple) | Frame width |
|---|---|---|
| Nitrous | 60-16-135 | 143 mm |
| Nitrous Shift | 60-16-135 | Not listed |
We don’t list sizes for Voltage, Octane, Octane Shift and Flash yet, or a frame width for Nitrous Shift. Contact us and we’ll help you choose based on a pair that fits you today.
Prescription lenses are available on the Nitrous frame. For Nitrous Shift, contact us before ordering. For prescription-first Reebok glasses, see Reebok Optical (LCD011) below. Frame details are on Reebok Sport smart eyewear.
Reebok Optical (LCD011, Rx)
| Original frame | Too big? Try | Too small? Try |
|---|---|---|
| Thunder | Thunder Slim | Eclipse, Nitrous |
| Thunder Slim | Dash Slim, Shine | Thunder |
| Dash | Dash Slim | Eclipse |
| Dash Slim | Thunder Slim | Dash, Eclipse |
| Shine | Thunder Slim, Dash Slim | Millennia, Moonrise |
| Jet | Thunder Slim, Dash Slim | Eclipse, Navigator, Explorer, Nitrous |
Lucyd AERO (LCD012)
AERO frames are grouped by frame width. Measure a pair of glasses that fits you well and pick the closest width. For lenses, battery and care, see Lucyd AERO.
| Fit | Frames | Frame width |
|---|---|---|
| Narrow | Phantom Slim, Falcon, Saucer | 144 mm |
| Regular | Phantom, Hawk, Lark | 148 to 152 mm |
| Wide | Phantom XL | 154 mm |
Lark (148 mm) is in the Regular group and is a good fit for petite to smaller faces.
Phantom, Phantom XL and Phantom Slim also come in a black polarized sun version with the same fit.
Legacy frames (Nautica, Eddie Bauer)
If you have a Nautica or Eddie Bauer frame and need a swap, contact us and we’ll help you find an equivalent current-model frame in Lucyd Lyte, Armor, or Reebok.
These older lines are no longer in active production:
- Nautica: liquidation only (no new SKUs).
- Eddie Bauer: removed (legacy warranty support only).
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