Firstly let's look at the Dive Sangha warm weather poncho, as shown to the left and below. The material feels like chamois leather or a microfibre towel, so it dries you off and then dries quickly itself. There's plenty of space underneath to take off any wet clothes or a suit without exposing yourself and also keeps you warm if there is a breeze in between dives.
When I teach freediving we spend the whole day on the freedive platform in our wetsuits. That's lovely on a warm day, but when it's springtime or there is rain lashing down there is very little we can do to stay warm. With three immersions a day I also get quite a low core temperature by the third session.
I've found the Dryrobe very handy this summer not only for myself but also when I have students who are starting to get cold and still have skills to complete to pass their course. It can certainly save the day and I'm sure save lives too. As with the poncho above, this robe is roomy enough to get changed underneath, but freedive suits are impossible to get out of without being free of the jacket. The fluffy interior is very snug and makes you feel as if you're wrapped up in a sleeping bag! The outer lining is wind and water proof.