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ER physician Dr. Travis Stork tells viewers about a pair of underwear designed by a Japanese company with the intention of helping with the airflow around the genitals. There is a mesh underside where the testicles go and then a separate area for the penis. “Wait, wait, wait! They’re not meant to be separated, they come as a set!” exclaims plastic surgeon Dr. Andrew Ordon.

Watch: Would You Wear Your Underwear More Than Once?

The Doctors invite urologist expert Dr. Aaron Spitz to weigh in on this. He says that there is actually something to be said about giving “the boys” some space. That area can get hot, sticky and moist and that type of environment allows yeast to grow. This can be the cause of jock itch and yeast infections. The design does give some space for ventilation.

Dr. Spitz says the issue with the sack for the testicles is that the scrotum size amongst men can vary. Some men have benign conditions, like fluid around their testicles or cysts, that would make this pouch impractical for them. 

Watch: The Undergarment That Could be Wreaking Havoc Down There

The other problem according to Dr. Spitz is that penis shape varies a lot from guy to guy. “These are not one size fits all ways.” While the intentions are good, Dr. Spitz says overall he’s calling this product a bust!