What kind of swim cap does Michael Phelps wear?

by Hi, my name is Rick.
Query by Josh S: What kind of swim cap does Michael Phelps wear?
I am seeking for the form of swim cap Michael Phelps wears. Is it silicone, latex, or lycra??

Thanks for your assist


Greatest answer:
Answer by Amber Csilicone

What do you think? Answer

Michael Phelps Diet