Thought bits of the new Johnnie B range were quite nice but am confused over their sizing system! The dresses and tops are mostly s, m or l. Does anyone know what that equates to in adult sizes - eg is a large a 10 or a 12??? Looked at the sizing guides and they just list lots of cm measurements and I can't be faffed to dig out a tape measure and measure bits of me that have not been measured in a long time!I'm usually an adult 10 or 12. Thanks.