Timberland PRO - Mudslinger Mid (Bear Track Autumn Full-Grain Leather) - Men's: Premium full-grain leather upper for comfort and durability. Ortholite polyurethane footbed with Agion anti-microbial cover provides durable, resilient cushioning. Internal TPU shock diffusion plate spreads pressure of impact forces. Compression molded EVA midsole provides lightweight cushioning. Timberland PRO rubber outsole is slip-resistant, oil-resistant and abrasion resistant. Steel toe meets ANSI Z41 PT99 safety standards and feature a roomier steel toe box than most other boots for a more comfortable fit. Electrical Hazard Protection meets ANSI Z41PT99 standards to provide protection from open circuits. PRO 24/7 Comfort Suspension technology is a unique comfort system that meets the most rigorous work site demands - 24 hours a day, 7 days a week. It helps reduce foot fatigue, support the arch and cushion every step.