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Costa Del Mar Turbine Polarized Sunglasses - Costa 400 Glass Lens
Item #CDM0023
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0 in Stock
How can the lenses be "Glass CR39?" Glass is, well...
By xprmntl1366362
Ranked #259 - Polarized Sport Sunglasses
March 18, 2010
How can the lenses be "Glass CR39?" Glass is, well glass--a silicon dioxide based, amorphous ceramic. And CR39 is a polymer (plastic), similar to polycarbonate. If it's glass nanoparticle-filled CR39, then it should be called a plastic composite or plastic matrix composite.
View Details: Costa Del Mar Turbine Polarized Sunglasses - Costa 400 Glass Lens
Helpful Votes: 0 Yes
By Rick Agostin
Ranked #1120 - Sunglasses
March 18, 2010
It looks like they are sold out of the CR-39 lenses. These are Glass (blue mirror) not CR-39, they need to put some punctuation to differentiate the two types of lenses offered.
Helpful Votes: 0 Yes
Change me.