LONG DISTANCE SWIM SERIES
SUITABLE FOR LONG DISTANCE SWIM
Product Features
* Absolute flat surface guarantee the same diopter above and below water.
* PC material optical lens, strong light and UV protection.
* Myopic diopter varies from -1.5 ~ -10.0. Aspherical lenses applied above -8.0.
* The diopter graduated by -0.5 for -1.5 ~ -7.0: graduated by -1.0 above -7.0.
* Presbyopic diopter varies from +1.5 ~ +4.0, the diopter graduated by +0.5.
* 3 sizes Nose Bridge S、M、L suitable for PD value 61 ~ 67±3mm.
* Shifts the center point of myopic and presbyopic lenses by 4mm to meet the PD value of eyes.
* One touch side buckle can be detached quickly. Lens can be swapped easily.
* Top quality silicon gasket and head strap, good elasticity, allergy-fre
