Sliver Lens Sizing

[Sharkattack]

Hi, I am looking for Sliver XL replacement lenses as existing failing again. On Oakley AUS website when i look up XL in description it says Size U. When i look up Sliver lens description says Size U. Are they the same and interchangeable ??? I have emailed AUS support but no answer yet !!
David G

 

[Sharkattack]

Hi, I am looking for Sliver XL replacement lenses as existing failing again. On Oakley AUS website when i look up XL in description it says Size U. When i look up Sliver lens description says Size U. Are they the same and interchangeable ??? I have emailed AUS support but no answer yet !!
David G

Im now reading there is a difference in lense height 41 and XL 45 ...thanks