Straight hair. Easier, in every way, to work with. IF I let my hair grow a little longer, the front part has a beautiful wave, which I love, BUT there's a price to pay for that! My hair gets excessively oily & sweaty, so it needs to be washed twice daily. Can't be bothered, so keep it short. Lots easier to manage. Whilst working, used to let it grow over Winter months'. Wave did look pretty!