3-stage, Triple Density Technology (TDT) construction. Ideal compound formulations for agricultural applications. TDT outsoles are dual compounded for long wear and slip-resistance. Grooved angled heel stop grips floor when pushing off at the heel. Foot Form contour cushion insoles. Built-in ergonomic footbeds maximize fatigue-fighting design. Extended and ribbed steel shanks add strength and support. Reinforced construction.