Step out in the cold without any worry wearing the UGG Atlason Waterproof Boot. The removable enerG Comfort System insole has an additional layer of open-cell polyurethane foam that offers moisture-wicking and anti-microbial comfort, while the UGGpure wool lining keeps your foot dry and cozy. The eVent waterproof bootie construction provides protection in temperatures as low as -32 C, and the Vibram outsole with ArcticGrip non-slip rubber delivers excellent traction on icy terrain. Removable ene