I have long thick curly hair! My trainer does a really tight Dutch braid on my entire head and then folds the bottom up onto the top of my head and then puts on a hair net!
No know hair net is awesome!!!
My friend has a helmet for schooling and for shows and uses the slip on hair nets there kinda like a tube those seem to work
Sometimes two hair nets will contain lots of hair but you may need a larger helmet to fit the thickness of your hair and hairnets
Any hairnet is pretty good for curly hair under the helmet or if you want your curly hair to show (this is what my sister does) you can put hair spray on top of your head to flatten it out and then place your helmet on