The ornamental design for a condom, as shown and described.
1. Condom
1.1 : Perspective
1.2 : Top
1.3 : Back
Condom having a circular section with a body consisting of two compartments, front and back, joined by an annular zone with a diameter lower than the diameters of the body passage; said circular annular zone is concentric to the circle of the peripheral contour of the condom body, and may have a variable thickening so as to stick to the glans sulcus, preventing the passage of seminal fluid between the two compartments, so as to stop the condom from coming off in any situation; between the annular and body zones, the connected surfaces have an inclination between 0° and 45° with respect to the axis of the condom.