TheyFit size G31 is the World's Largest Condom.
It is 240mm (9.45") long, with a uniform nominal width of 69mm.
It can accommodate comfortably a penile girth up to 8 inches (not far off the circumference of a Pringle can).
It's 11% longer than a Durex XL condom and 21% wider.
It's 17% longer than a Magnum XL condom and 27% wider.