Lunch box

A lunch container comprising a container body (1) made of a metal material, provided with a bottom wall (201) and a continuous side wall, the trailing edge of which is provided with a toroidal relief (101) projecting radially outwardly, and a lid, comprising a flat plate (2), made of a metal material, along the peripheral edge of which a gasket (3) made of an elastomeric material is overmolded, so as to encompass a portion (302) of the peripheral edge of said flat plate (2), said gasket (3) being formed so as to cooperate with the toroidal relief protruding from the trailing edge of the container body (1), and there being provided in said plate (2), at a given distance from the peripheral edge thereof, a recess (102) formed from the outside to the inside of said flat plate (2), and provided with a through-hole (112) in which is housed the valve-cap (202) of said lid, also made of elastomeric material, wherein the gasket (3) is shaped with a substantially G-shaped profile, in which one flap (103) of the profile is overprinted on the flat plate (2), one flap (203) faces the outside of the container body and cooperates with said toroidal relief (101), and the other flap (303) is intended to cooperate with the inner face of the side wall of the container body (1).