Label = US 12/13 Roomy fit Fully molded Croslite™ construction Odor-resistant Water-friendly & buoyant Drainage ports Ventilation holes Pivoting heel strap Non-marking sole Imported Crocs recommend sizing down to the next smallest whole size for half sizes Environmentally. Sustainability, Fair Manufacturing, Equality, Individualism, Unity, Community, Charity, Philanthropy conscious brand Sizing recommendation: Measure from the back of the heel (the outermost part) to the longest toe; with the foot weighted, flat on the floor, marking perpendicular to the outermost edges for most accurate measurements. It's recommended to measure kids every month, but development can vary & children are susceptible to growth spurts. Product listings may vary. Please send a message for any inquiries.