What Our Gearhead® 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 -40°F 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 -40°F, 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. Details Seam-sealed waterproof nylon upper keeps feet dry in deep snow 6mm recycled Thermal Guard liner provides warmth to -40°F Removable liner wicks moisture and is easy to dry between uses Bungee lace system with Easy-Grab lace lock for quick on/off Synthetic rubber shell with GripXT outsole for stable footing Padded collar and gusseted tongue seal out snow for added comfort Item #KKMU1DF