So why has the cardy ugg boot been so much more popular than the classic ugg boot that hit the high street years ago? Well the main difference between the two boots is the style, with the fresher version being given a makeover and because its made from a new looser woollen fabric they are much stretchier than the original ugg so can be easily worn up or down depending on your mood!! But the new range of cardy ugg boots don't have the same sheepskin look as the classic ugg but fashion designers have still been going crazy over them. This is because the timeless classic ugg boot had became boring and dull and fashionable girls feet were screaming out for a sexy new boot to break hearts in all winter. Well with the ultra glam ugg classic cardy boot becoming the best selling winter boot around there must be something this boot has that other boots are lacking in.