Protect your polarized sunglasses to prolong the lifespan of your Bourbon Eyewear Polarized Sunglasses:

When your sunglasses are not in use always store them in the protective case provided. This will prevent the acculuation of dust and prevent scratches on the lenses.
Do not expose your polarized sunglasses to extreme temperatures as this can effect the polarized coating.
Try to avoid "dry rubbing" your lenses as minor dust particles can cause miniscule scratches and degrade the polarized coating on the lenses.