All Day Performance: The removable polyurethane with memory foam footbed gives your feet long-lasting comfort, while high-rebound EnerG material delivers a recharging burst of energy with every step. The CuShin comfort tongue and memory foam collar help reduce pressure on your ankle and shin. ScentBan technology helps eliminate and resist odors. Tough Terrain Traction: Keep stability and traction through uneven terrain with the durable outsole with tapered rubber lugs and toe tread. The sole includes a comfortable shank which provides more stable footing and helps support your feet and calves. Waterproof Design: Full grain leather with abrasion-resistant ArmaTec XT material and honeycomb ripstop upper is protected with UltraDry waterproof construction that combines moisture management lining with waterproof components for dry, long-lasting comfort and performance. Lightweight Comfortability: Weight of the boot is reduced with PRM technology in the sole, a breakthrough composite material providing extreme comfort and added endurance. Engineered to provide the durability and strength of traditional materials without the extra weight. Insulated: Boot is insulated with high density 400g PrimaLoft that is designed for repeated compression and durability over time for dry, long-lasting comfort and performance. PrimaLoft insulation is made of 90% post-consumer plastic bottle fibers which keeps your feet warm and is good for the environment.