From Nike, the Girls' Flex Runner 4 SE Sneakers feature:  Mesh and synthetic upper Its bootie-like design is flexible with stretchy straps that secure their fit Pull tabs on the heel and tongue work with a stretchy inner sleeve to help make these shoes easy for kids to put on themselves Elastic straps run behind the heel and across the top of the foot to provide a snug, secure feel Foam midsole Multi-surface traction works with sturdy foam that wraps around the heel to provide grip and stability when kids shift directions Reinforced toe Flex grooves in the outsole add flexibility, helping every step feel natural Imported.