THE DESIGN: Designed by Little Bipsy in the PNW Sourced from the highest quality material, using 100% genuine leather, suede, and flexible rubber. Velcro adjustable strap with faux gold buckle for easy on/off and custom fit. Closed backing for extra comfort and protection. Flexible rubber sole that provides the perfect amount of support while encouraging natural movement and healthy development. Water tolerable / rinse if worn in salt water. WASHING INSTRUCTIONS: Handwash only / warm water / soft cloth to pat or air dry. SIZING: 1 / 0-6mo / 10.2cm 2 / 6-12mo / 11cm 3 / 12-18mo / 12.5cm 4 / 18-24mo / 13.5cm 5-6 / 24-2.5t / 14.7cm 6-7 / 2.5t-3.5t/ 15.7cm 7-8 / 3.5t-4.5t/ 16.7cm Please measure your baby's foot! To ensure a proper fit, here are a few helpful hints Measurements of the shoes are from toe heal on the outer sole, measure baby's foot from big toe to heal and allow 1cm for growth and proper fit. If your baby foot falls between sizes, select the larger size.