Vivobarefoot Junior Ultra K EVA Running Shoes 7.0 mm Sole - Compresses to 3mm, making this shoe extremely responsive and close to the ground, making it safer to run over rocks and uneven terrain. Velcro Fitting - Easy and convenient fitting for any youngster. Collar/Panel & Lining - Featuring a removeable antibaterial mesh sock to help keep the shoe and your feet fresh. Eco-Crendentials - A 100% Vegan, Dual density injection moulded for glueless, mono-material shell. Puncture Resistant Sole - Helps to protect small feet from damage and abrasion.