Replacement Lens Sweet Protection Memento - ClearReplacement Lens Sweet Protection Memento Clear Make sure you cover all conditions with spare lenses for your Memento sport performance sunglasses. The Memento sport performance sunglasses represents progressive and casual styling within the sport performance sunglasses collection. Changing the lens is done in a few seconds. The Clear lens (VLT = 90%) is perfect for rainy days and or low light conditions where you still need to protect your eyes.