I wonder what products THEY use

[Fine 4s]

"Before every competition, synchro swimmers wet their hair, pull it back in a tight bun using old-fashioned bobby pins, then apply a gel to remove any chance of it getting in their face during the routine. It goes on as a warm, thick paste and hardens while drying, which leaves the hair shining like a car just off the assembly line. They say it can be washed out with very hot water, but a chisel might work better."

I read this on the MSN homepage I believe.
What gel is this? I want some...

 

[JustKiya]

It could be Joico Ice Spiker - though, it says nothing about being warm.

Ah! Found it.

The stuff in swimmers' hair is unflavored Knox gelatin, similar to that which is used in jell-o and cheesecake. The purpose is to keep the athlete's hair out of her face. It is applied as a warm, thick paste, hardens while air-drying, and is washed out in very hot water following the competition. Before Knox, swimmers used Vaseline, waterproof hair spray, or Dippity-doo hair gel.

 

[SoSweet08]

Wow yall are good lol