"For an average adult height, morbid obesity (BMI ≥ 40) typically starts around 250–300 pounds or more, depending on height. For example:
At 5'5" (1.65 m), a BMI of 40 equates to about 240 pounds.
At 5'10" (1.78 m), it’s about 280 pounds.
At 6'0" (1.83 m), it’s about 295 pounds.
For BMI ≥ 35 with health conditions, the threshold is lower, e.g., around 210 pounds at 5'5". Exact weight varies by height, as BMI is weight (kg) divided by height (m) squared. To convert BMI to pounds, use: weight (lb) = BMI × height (in)² × 0.045."
Yes they clearly are morbidly obese. They are advertising what the pants look like on the average person.