tl;dr: they allegedly added cloth to the crotch area, which increased air resistance<p>> <i>“It was an extremely high-level manipulation,” race director Pertile said of the Norwegian actions that were “absolutely by far the worst” in his five years in the job. “We destroyed the suit to be able to find this adjustment.”</i><p>> <i>The Italian official said alterations were not detected by eye and only were revealed by examining the seams of the crotch area of the ski suits after the competition.</i><p>> <i>Extra material in the same color had been inserted that added weight and helped to lower the material between an athlete’s legs as they took off into the flight phase. More surface area hitting the air helps add to flight time, Pertile said.</i>