Ankle Boots by UGG Australia The Bailey Button II features the iconic Ugg silhouette, upper constructed with premium materials with the addition of a pre-treatment against moisture and staining as well as the Treadlite outsole for extra comfort and traction. Complete with an oversized button feature on the side and Ugg branding on the heel. - Twin-face sheepskin & suede mixed upper - Pre-treated against stains & moisture - UggPure wool insole - Treadlite by Ugg outsole - Please be aware that our genuine UGG boots are only available in half sizes. If you are normally a size 6 please order a size 6.5 as this is the equivalent size.