Hand-laid premium rubber over a 5mm neoprene core for flexible, waterproof comfort 1,200 gram insulation 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. Hand-laid premium rubber over a 5mm neoprene core for flexible, waterproof comfort 1,200 gram insulation 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