Boot Features: Waterproof full grain leather upper Thermal foam insulation Breathable fabric lining Fiberglass shank Removable full-cushion footbed Wolverine is a leader when it comes to work boots. The inventor of the widely used and famous Durashocks comfort system, Wolverine is known for comfortable work boots that meet the demands “”on the job”" since 1883! Wolverines are tough, powerful, and comfortable for whatever you need - on the job, everyday!Wolverine Men’s 6″” Waterproof Insulated Steel Toe Work Boots - Black