A cap feature is a type of headwear that has various components. VISOR is a five-letter term for the brim of a hat, which is typically made of stiff material and is designed to protect the wearer's eyes from the sun. Earflap is a seven-letter term for a piece of fabric or leather that hangs down from the sides of a hat and covers the ears. EARLAP is a six-letter term for a similar piece of fabric or leather that is attached to the back of a hat and covers the neck. All three of these terms are related to the cap feature.