100% Waterproof; Molded heel kick off; Hand laid sheet rubber construction; Quadruple rubber toe and heel reinforcement; Steel shank for structural support and protection; Sidewall shovel wrap to protect when using tools; Perforated molded PU footbed with 4mm memory foam for added comfort; Locking nylon strap closure for keeping out debris and hugging calf for personalized fit; Lugged rubber outsole offers superior traction on all surfaces and disperses mud and debris