Ugg Australia Men's Hilner 6" WP Thinsulate Work Boot Leather Insole: 7mm curly UGGpure sockliner that naturally wicks away moisture Outsole: Incorporating the White Spider Rubber compound and utilizing the UGG specific Tasman pattern, this athletic rubber outsole provides maximum traction and comfort for any occasion Style Details: Waterproof leather upper with suede shaft 6 eye-stay with 1 speed hook to secure a functional, non-wicking 5mm round nylon lace Upper shaft lined with wool (50% Polyester, 50% Wool); 5 3/4" shaft height