Hi, and welcome. I strongly nsuggest that you don't wear textile gear on the track. Simply because it doesn't hold up to the abbrassion. I witnessed firsthand when another rider simply drug their leg in a "good" textile suit only to see it disintigrate and expose her leg from boot to knee. Textiles are okay for 'one time' falls, then are garbage. I understand that textiles are cumfortable and offer more freedome of movement for the street, but that freedome of movement also allows the body armour to move around and it may not protect you as well as it should. In situation where you may slide for a bit on an abbrassive surface (such as Stratotech), leather is the only way to go. Hope this is helpful. Cheers!
Norm