Automobile hood

An automobile hood, comprising:

• a panel,
• a reinforcing member, and
• a joint that joins together the panel and the reinforcing member,
• wherein:
• the reinforcing member includes a structure formed from a plurality of units having a hexagonal annular shape disposed in a close-packed arrangement;
• the unit has a floor, an inclined wall, and a top plate;
• the floor is adjacent to the panel;
• the top plate and the panel are separated from each other;
• the inclined wall is between the floor and the top plate;
• a hexagonal annular ridge line of the unit is between the floor and the inclined wall;
• the floor has an annular end part which is centered on a center of the annular unit;
• all of the end part is between a first circle which is inscribed within the ridge line, and a second circle which is concentric with the first circle and which has a radius that is 60% of a radius of the first circle;
• the floor includes a floor surface as a face which faces the panel;
• and
• a width of the floor surface is 2 mm or more over an entire area of the annular end part in a circumferential direction of the annular end part.