The UGG® Butte Bomber is the perfect cold weather boot to sport all winter long.

• Full-grain leather upper features a waterproof and windproof eVent™ membrane that "vents" moisture from inside the shoe for a durably waterproof boot.
• Fully lined with UGGpure™.
• eVent™ Fabric: 
• Through Direct Venting™ proprietary and patented technology, millions of tiny pores are able to breathe at their full potential, allowing sweat to vent directly to the outside of the fabric in one easy step.
• Removable/replaceable UGGpure™ insole.
• UGG® teamed up with Vibram® to produce a technical and sleek outsole.