Size S - Ref. UK Size 6-8 ; Size M - Ref. UK Size 8-10
Size L - Ref. UK Size 10-12;Size XL - Ref. UK Size 12-14
Size 2XL - Ref. UK Size 14-16 ; Size 3XL - Ref. UK Size 16-18;
Size 4XL - Ref. UK Size 18-20
there are 2 kind of head cover for choose, the normal cap and full cover Hijab,please choose the one you need