[deskr]

She mentions the male version with a zip on the front. How does that work, do you just unzip, haul it out and have a go in the freezing cold sea? Don't you fill up the suit with sea?

[matsemann]

It's more that you can go between dives without having to de-suit completely, I think.

[belorn]

Correct. It is for when the diver is on land/boat.

It is however fairly uncommon today to see people with such zipper since zippers tend to be the first place a drysuit start to leak.

[manarth]

As others have said, the zip is for use above water.

Underwater, men have similar choices – holding it in, wearing a diaper, or a condom catheter (similar principle but without the need for such precise and thorough glue application).