What maneuvers are required to do Judo? What characteristics does an article of clothing need to have in order to do #1 effectively? What characteristics does a silicone suit have?  Is #3 excluded from #2?
Judo
Judo is a martial art that requires combatants to grip their opponents and throw them in various ways. Judo practitioners traditionally wear an outfit called a gi, which opponents use to grip and throw. Silicone is one of the slipperiest substances on the planet.
modern martial art, combat and Olympic sport
Do silicone suits make judo difficult?