I have white and blue Reebok zigs.....best way to clean them?

i need to clean the nylon like fabric and i have tried Kiwi sports cleaner and it barely did the job....i need a very good way to clean them please help and maybe i can stick them with my laundry in the laundry machine? and the marks on them are grass stains and some sort of orangesh-brownish dirt looking stuff please help!!