Athletic shoe agility meets rubber boot utility. This boot was made to move you much further and much faster thanks to its light weight, flexibility, and comfort. It begins with premium hand-laid rubber over 5mm of naturally insulating neoprene so you know they'll be waterproof and durable. And of course, our signature adjustable gusset fits any size calf snugly and securely. Hand-laid premium rubber over a 5mm neoprene core for flexible, waterproof comfort Moisture-wicking and quick-drying polyester jersey liner Multilayer rubber provides support and durability with added texture in high-wear areas Active Fit locks the heel in place and back gusset is adjustable for a comfortable, secure fit Specially formulated LXA midsole gives athletic shoe-like agility and cushion for all-day use Kick-off heel plate allows easy hands-free removal