Related Clues:

• Sun-blocking hat
• Sun shield
• Cap flap
• Cap part
• Certain brim
• Sunglasses alternative
• Eye shade?
• Sunshade
• Type of tennis headgear
• Golfer's wear
• Card player's headwear, perhaps
• Winter hat feature
• Golf-cap feature
• It has openings for a knight
• Deerstalker fold-down