Size Guide. UK Size 6-8 8-10 10-12 14 16. Jumpers & Cardigans. Cleaned and ready to wear. One of a kind item get it before it's gone! CM 39cm 40cm 41cm 42cm 43cm. CM 52.5cm 55cm 57.5cm 60cm 62.5cm. CM 89cm 94cm 99cm 104cm 109cm.