A stretchy bootie design provides a snug fit while ensuring the Flex Runner 3 is easy to slip on and off Synthetic leather overlays work with a heel strap and reinforced toe tip to provide support and durability where kids need it most Foam wraps around the heel to help provide stability when kids quickly shift directions. To keep the foam outsole flexible, we added flex grooves throughout, helping every step feel natural. Multiple tread patterns help provide durable multi-surface traction Breathable mesh keeps the shoe lightweight and helps little feet stay cool Pull tabs on the heel and tongue help make the shoe easy to take on and off An easy-to-pull-on design and grippy outsole make the Flex Runner a fan favorite. Made with playgrounds and spontaneous games of chase in mind, this iteration has the stretchy bootie kids love with synthetic leather overlays for durability. A flexible outsole helps provide multi-surface traction, so little ones are always ready to play.