Calf Boots by UGG The Classic Tall Ugg boots we all know and love has been upgraded with the addition of pre-treated against stains & moisture uppers. The Treadlite outsole providing you with even more cushioning and traction is another new feature making this boot the perfect companion this winter! - Twin-face sheepskin & suede mixed upper - Pre-treated against stains & moisture - UggPure wool insole - Treadlite by Ugg outsole - Please note: If you receive a UGG product with a half size label on the box this equates to the full size ordered. Eg. UK 6.5 is, in fact a UK 6.