Frozen lakes, snow-covered shorelines, and slushy access points demand footwear that keeps your feet warm, dry, and steady through every step. The Clam Sub-Zero X Rubber Boots combine 100% waterproof rubber construction with a removable wool-padded inner liner and protection rated to -40AdegF, making them an excellent choice for ice anglers targeting walleye, perch, lake trout, crappie, and northern pike. A secure cuff closure and aggressive traction help you move confidently across changing winter conditions from the first hole to the last. Rated to -40AdegF to provide dependable warmth during ice fishing and other cold-weather outdoor activities Full rubber construction delivers long-lasting durability and 100% waterproof protection against snow, slush, and standing water Removable wool-padded inner liner adds warmth and comfort while allowing the liner to dry between trips True Traction outsole provides reliable grip Reflective cuff with tie closure improves visibility and creates a secure fit Heel kick tab allows quick boot removal after a long day on the ice Black/Charcoal color offers a clean, versatile look Manufacturer's one-year limited warranty Made in the USA