Waterproof leather upper Breathable and moisture-wicking lining 200 Grams of Thermolite Insulation Timberland PRO 24/7 comfort system reduces foot fatigue Seam-sealed waterproof construction. PU midsole Thermoplastic Urethane (TPU) outsole with excellent trace, oil and abrasion resistance. Patented SR Max MaxTrax anti-slip tread design Direct Fit Construction Soft toe No safety toe cap