I've got a pair of Ugg ankle boots that I want to sell on ebay but they haven't got a size marked. I bought them used myself. I think they're a 5 but need to be sure. Has anyone got a pair of 5's that they can measure for me please? Mine measure 27 cm, measured on the sole from the tip of the toe to the heel, down the centre. I'd be ever so grateful if someone could check for me! Thank you!