I'm taking tumbling classes next month and I need to know what to wear. Do you guys have any idea? Thanks!

The class should have specific requirements for their school. No one here can tell you what the school you are going to, will require.

If they have a web site, it may be listed there. For example in my schools, for fitness we have general wear, for Martial Arts, there is specific uniforms you have to buy from us. For our Dance school you have to wear specific outfits and even certain colors