What Our Gearhead(R) Experts Are Saying:"These boots are built for serious winter play. The removable liner is cozy and easy to dry overnight, and the bungee lace system is kid-friendly, so they can get ready fast. The waterproof build and -40degF rating mean I don't have to worry about cold, wet feet cutting the fun short."From snowball fights to sledding marathons, the Cascade Boots let kids play hard without worrying about cold toes. The seam-sealed waterproof nylon upper and synthetic rubber shell block out snow and slush, while the 6mm Thermal Guard liner-made from 100% recycled content-locks in warmth even in subzero conditions. Rated to -40degF, these boots are ready for the coldest days of the year. The easy bungee lace system with an Easy-Grab lace lock makes getting boots on and off a breeze, and the padded collar and gusseted tongue add comfort while sealing out snow. Underfoot, the GripXT outsole's deep treads give dependable traction in snowy, slippery terrain, helping keep kids stable while they explore their winter wonderland.