Effortless Fun: Slip On & Go Designed for Playtime Built for Motion Airflow Mesh for Comfort Heel & Tongue Tabs for Easy On/Off Easy to slip on, the Flex Runner's grippy outsole makes it a beloved choice. Designed for playgrounds, recess, and impromptu games, this version features a stretchy bootie kids adore, reinforced with leather overlays for durability. Its flexible outsole offers multi-surface traction, ensuring kids are always game-ready.