SIZE 7 Seam-sealed, waterproof membrane construction and water gusset keeps water and debris out. Resistant to 10000mb pressure/4 hours TPR thermoplastic rubber outsole built for maximum grip on wet and snowy terrain. Features 3M Thinsulate thermal lining and insole good to -35° delivering 360-degree insulation. Hook and loop closure with faux elastic laces allows for secure fit and custom adjustability. Approved by the American Podiatric medical association to promote healthy foot development. Description This lightweight, yet sturdy, cold-weather boot will ensure your little one explores in comfort and safety, with its flexible gripping outsole and waterproof, insulated design.