We make sure to mark one side to ensure that the swimmer always puts the goggles on with the correct prescription in each eye
These goggles replace another Speedo set, on which the strap finally broke after many years
I bought 2 pairs recently and they became virtually unusable because the anti-fog coating failed in a few days
) great goggles! perfect underwater view i can even see land well enough, even when not submerged
We have found that these goggles will usually last 6 months to a year with daily swim practice
It's wonderful that they're no more expensive that the non-vision-corrected model