The Perfect Storm Cloud Hi kid's insulated boot is 100% waterproof and includes a perform shield handle and non-marking, non-slip outsole delivers superior traction in all conditions. It is fully insulated with 7 mm neoprene to keep you warm in the coldest conditions. The removable EVA insole adds cushioning and perform reflective detail provides visibility in low-light or nighttime conditions. The boot also includes anti-microbial odor protection on all lining materials. The active comfort range is 60F to -30F.