Ready to cross frigid streams, stand tall in the trees, and tackle chores in the backyard, our USA-built Alpha Evolution is the outcome of over a hundred years of experience crafting durable, hardworking rubber footwear. It&&';;s outfitted with a VibramA(R) outsole and premium features for long-lasting comfort, waterproofing, and durability. PrimaLoftA(R) Aerogel Toe Cap Ultra-light toe insulation delivers targeted warmth in cold conditions. Used in NASA space suits, Aerogel traps micro-pockets of air without bulk and maintains insulation when compressed, so it won&&';;t pack down over time. Alpha Construction Built with hand-laid premium, natural rubber over insulating neoprene for durability, flexibility and complete waterproof protection. 1600G PrimaloftA(R) Insulation PrimaLoftA(R) Gold Insulation performs in wet or dry conditions and maintains its thermal properties no matter how many times you wear your boots, making it the go-to choice for insulated footwear. Made in USA The Alpha Evolution is the outcome of over a hundred years of experience crafting durable, hardworking rubber footwear - and it&&';;s proudly made in USA with imported components. First Lite Specter Specter uses First Lite&';s nature-based algorithm (found in Fusion and Cipher) to create large-shape disruption for whitetail hunters. This distorts and hides the human body, which inherently stands out in the natural environment. The visual disruption is created by incorporating large regions of both light and dark colors (macro break up) found in the tree canopy. Neoprene Gusset Durable, neoprene gusset accommodates different calf sizes and makes it easy to slide the boot on and off. EVA Midsole We use a rubberized EVA midsole that delivers superior cushioning and shock absorption underfoot. VibramA(R) ICETREK The soft, rubber compound in VibramA(R) ICETREK allows for superior grip and traction on ice, snow, and other cold terrain without damaging interior surfaces such as flooring. Scent Suppressing There&&';;s no better scent suppressing material than rubber. Our formulas combine absolute comfort with unequaled scent protection.