Description Alpha Construction: Built with hand-laid premium, natural rubber over insulating neoprene for durability, flexibility and complete waterproof protection. Comfort Liner: Quick drying and moisture wicking, our jersey knit liner will keep your feet dry and comfortable. Active Fit: With a comfortable, secure fit to keep your foot in place while on the move, boots with Active Fit also go on and come off with ease. Kick-Off Heel Plate: For easy hands-free removal. Snake Guard: We use a flexible snake protection fabric in between the liner and exterior of the boot to give you complete snake protection without weighing you down. Learn More. Agility Outsole: The durable rubber outsole of the Alpha Agility is paired with a midsole constructed from our lightweight LXA compound for optimal rebound and comfort.