How does a wetsuit keep you warm?

Question

As the title suggests I’ve always hated getting into cold water and have been told a wetsuit keeps you warm, how exactly does that work?

In: Biology

Answer 1

When you would use one, you put it on, get in the water then fill the wet suit with water. This creates a warm water pocket to insulate you. Your body temp keeps adding to it.

It is surprising just how cold the water can be just going from the surface to 50-60 feet down.