For centuries, sheep farmers and country folk have known that no natural or man-made fiber possesses the virtues of 100% sheepskin. The unique combination of leather skin on one side and wool on the other lends it remarkable properties. Cool in Summer and Warm in the Winter Sheepskin wool is soft and resilient. Its fibers breathe, acting like a natural thermostat for your body. These hollow fibers can absorb up to 30% of their own weight in moisture without feeling wet, keeping you perfectly dry regardless of the weather.