Since 1978, UGGs have prided themselves on using the best materials and employing an uncompromising attitude toward quality and craftsmanship. From grade-A sheepskin to rich leather and industry-leading technology, all of their materials are carefully selected and artfully crafted with beautiful precision. When sourcing our trademark Twinface, they look for uniformity and a flawless, fine-grained texture. On the wool side, there has to be an even "stand up" thickness across the entire piece. At six different points in their process they select and re-select against these criteria, ensuring only the highest quality sheepskin makes the cut!