This is Faye from Onlinekendo,thank you for your enquiry:)
Usually the weight of our standard shinai size 38 for women is 420g~440g, so it will be confirmed if you need a shinai with a minimum of 440g. Since most of our customers will prefer to buy 38 shinai with 480g to training.
Could you please let me know which one do you interested. so I can confirm the stock situationfor you :)
My E-mail address: firstname.lastname@example.org
Please feel free to let me know if you need any further help!