Get little ones ready to defy the elements in the Original Muck Boot Company Rover II Outdoor Sport Boot. This all-conditions kids' boot features a durable, 100 percent waterproof rubber upper for extreme weather protection; a wrap-up toe bumper delivers extra protection. The stretch-fit topline binding provides a secure fit around the calf to keep unwanted dirt and pebbles out, while the removable, 5MM Nitracel EVA insole lends underfoot cushioning and a slipper-like feel. The CR Flex Foam Bootie of the Original Muck Boot Company Rover II Outdoor Sport Boot cradles the foot in ultimate comfort while insulating from the cold, with a four-way stretch nylon lining for easy on/off. A lightweight rubber outsole with a diamond tread pattern offers excellent traction and stability on both wet and dry surfaces.