WATERPROOF: KEEN.DRY waterproof, breathable membrane to keep your kids’ feet dry and comfortable while jumping in puddles and walking in mud TRACTION & COMFORT: Multi-direction lugs provide optimal grip for sure footing in the most rugged terrain; Non-marking rubber outsoles leave no trace or imprints when walking indoors; Cushioned collar reduces irritation and discomfort around ankle area WARMTH: KEEN.WARM 200G insulation helps keep your kids’ feet warm in temperatures down to -25° F / -32° C, but still offers breathability; Fleece lining and thermal heat shield insole works captures warmth NO-FUSS FIT: Easy-on for them made with a wide, adjustable hook-and-loop strap to help them gear up and get out the door fast CARE TIPS: KEEN recommends gently brushing the boot with a soft bristle brush or hand towel to remove loose dirt and using a leather cleaner and conditioner for extending the life of the upper