The natural insulative properties of sheepskin gives thermostatic properties to the boots: the thick fleecy fibers on the inner part of the boots wick moisture and allow air to circulate, keeping the feet at body temperature. Ugg boots cheap are able to keep feet warm in relatively cold weather even if they are worn without socks.UGG Boots For Cheap often have a synthetic sole, although this is not universal. They are available in a range of different colours, and they are produced by a number of manufacturers.