Introducing the new men’s Ultra Collection! This collection is rooted in the UGG heritage, offering a rugged collection with a modern, hip feeling. Upper: UGG took extra time to make sure these materials were perfect. Rich oiled full grain leathers, twinface shearling and suedes. Insole: Plush UGGpure adds warmth, comfort and natural moisture wicking to this collection. They also added foam to the insole for an added comfort, and mylar film to keep your foot warm on cold days. Outsole: Exclusive Vibram outsole. Provides superior durability and traction.