Sizes 3/4 Infant - 9/10 Toddler ONLY have an elastic backstrap which can be permanently removed. Like a fish to water, he was born to wear these sandals! Synthetic strap features a soft polyester liner for added comfort. Printed EVA footbed is contoured to better fit your kiddo's foot. High-density EVA outsole for durability. Measurements: Weight: 2 oz Product measurements were taken using size 9-10 Toddler, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.