Check manufacturers website for sizing info. Let me know if you have any questions. They are in great condition. Some minor wear on the heels. Otherwise like new. Cozy and warm. Fits like a size US toddler 8. PRODUCT INFO KIDS OUTDOOR ADVENTURE OUTSOLE Durable and flexible for outdoor play. REMOVABLE THERMAL INSOLE The Thermal Insole has built-in temperature-regulating technology that absorbs, stores and releases heat. This smart thermal layer responds to the naturally changing temperatures of your feet, keeping them warm or cooling them down. VEGAN* *The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent. WATERPROOF Made using hydrophobic treatments, non-absorbent materials, sealed seams and an inner breathable membrane to make them completely waterproof. EASY TOGGLE FASTENING Fast, easy and snug toggle. HEEL LOOPS Tabs on the heels make it easy to pull these Vivos on, and can be used to hang a damp pair to air dry without deforming them WEIGHT Based on a single shoe in Toddler's size: EU 22 | UK 5 | US 6 125g