In many positions (such as pikes and tucks) divers' hands hold onto their legs. If the divers' hands or legs are wet, it's easy to lose grip. If a diver loses their grip, well, the dive goes awry and valuable points are lost. To solve that problem, divers use the shammys to dry off in between dives.

Why do divers rinse off after?

According to Brehmer, the answer comes down to one thing. "Divers shower in between dives typically just to keep themselves and their muscles warm," he says. They usually rinse off in water that's warmer than the pool. ... air temperature on the pool deck may be a little chilly, so the shower can help keep muscles warm.

Why do divers throw towel in water?

It's a super fast-drying towel divers use to dry off in between their dives as quickly as possible. It's important that they dry off every little bit of water so their hands don't slip from their grip on their legs during dives, which include flips and tucks.