UGG Sheepskin Double Face Shampoo cleans both the wool pile and leather. Best results are achieved by imersing the whole boot in the water as this enables the shampoo to completely clean both inside and outside of the boot. A washing machine may be used on the wool cycle.UGG Shampoo contains an antibacterial which helps prevent against foot odour and mould and mildew.Drying away from direct sunlight or in a dryer on LOW or WARM only.