Reef Kids Grom Smoothy (Infant/Toddler/Youth)Removable elasticized backstrap on sizes 3/4 Infant, 5/6 Infant/Toddler, 7/8 Toddler and 9/10 Toddler ensures a snug, secure fit.Woven polyester strap.Reef-Flex triple density EVA construction offers anatomically correct arch support.Durable, high density EVA outsole.Measurements:Weight: 2 ozProduct measurements were taken using size 2/3 Youth. Please note that measurements may vary by size.