| Density & Total Weight |
Ultra-Light (~12 – 16g complete); eliminates nasal pressure marks. |
Moderate to Heavy (28 – 38g); prone to sliding down the nose. |
Light (18 – 22g), but feels brittle and unbalanced. |
Moderate (20 – 30g); concentrated bridge weight. |
| Tensile Yield Strength & Flex |
High Elastic Memory; snaps back after extreme frame torquing. |
Low to Medium; permanently bends when sat upon or twisted. |
Very Low; snaps abruptly under sudden torsional stress. |
High yield strength, but permanently bends upon hard impact. |
| Thermal Stability & Creep |
Zero Plastic Creep up to 105°C; keeps lens bevel locked tight. |
Softens at 60°C; lenses pop out in hot vehicles or summer climates. |
Prone to rapid shrinkage and warping over 6 months of use. |
Extremely stable across extreme environmental temperatures. |
| Glazing & Mounting Versatility |
Cold Glaze Capable; no high-heat ovens required in lab. |
Requires pre-heating warm air boxes; risk of frame bubbling. |
Unpredictable bevel lock; high breakage rate during mounting. |
Requires eyewire screw loosening; screw stripping risks. |
| Biocompatibility & Sweat Resistance |
100% Bio-Inert, BPA-Free, immune to sweat salt corrosion. |
Absorbs skin oils over time; turns cloudy or whitish on temples. |
May release residual chemical plasticizers; skin irritation risks. |
Plating can degrade from acidic perspiration, exposing nickel. |
| Counter Shelf Life & Margin Potential |
Premium Showroom Appeal; achieves 3.5x to 5x retail markups. |
High perceived value, but high inventory storage bulk. |
Low retail price point; perceived as commodity eyewear. |
Standard professional margin; high competition. |