Your youngster will be ready for cold weather in this sturdy boot that keeps feet warm and dry with a KEEN. Dry waterproof membrane and KEEN. Warm insulation. Toggle-cinched elastic laces provide a secure fit, while KEEN's Eco Anti-Odor treatment helps keep the interior smelling fresh. Style Name: Keen Kelsa Insulated Waterproof Boot (Toddler, Little Kid & Big Kid). Style Number: 6041175. Available in stores.