Although ankle supports are needed for any type of martial art involving kicks, they are especially needed for Muay Thai. That is because there is a lot more kicking involved in it than say, Dutch Kickboxing or Karate.
You definitely want ankle supports that prevent your ankles from rolling over while you are in motion or from difficult or clumsy landings. Ankle injuries are quite common. The ankle supports help prevent or they should keep your ankles warm. Least minimize a sprain, torn ligament or something worse. You also want to ensure traction should the mat or the ring be slick or slippery.When you kick, you don’t want your foot to sting and effective ankle supports will prevent or minimize such things. Very often in Muay Thai, you will have to balance on one ankle and the kickboxing ankle supports will provide the needed support to aid in those circumstances.