â Hong Kong Version Fit Design - **Widened Temples + Three-level Nose Pad**: Designed for Asian big heads/high nose bridges (tested head circumference 62cm without tightness); - **TR90 Super Elastic Material**: Tested recovery after bicycle tire compression; - **Weight Only 22g**: No neck pressure when hanging, lightweight for commuting and sports. â Optical Practicality - **Prescription Lens Grooveé˘ç**: Compatible with up to 800 degrees; - **UV400 Basic Protection**: Blocks 90% UV rays for daily commuting.