Related Clues:

• Secret Service eyewear
• Shell
• Sunglasses
• Some beachwear
• Hues
• Ray-Bans, e.g.
• Nuances
• Part of many a disguise
• Window covers
• Ray-Ban offering
• Hipster's eyewear
• Window shopper's purchase?
• -
• Cats may wear them?
• Color gradations