Jaco's nogi gear has been acclaimed for some years now.$25
Is this for male and female, or just males?
I don't think it matters. If you're in an a2 gi, you should get an M or and L if you're a lady. 32 to 34 inch waist and that size should do it for female.
Are thes good to go under fight shorts or a gi? Are the good for compression shorts