Practical updates, like an adjustable hook-and-loop closure with elastic laces that adapts for the perfect fit, make this bootie an easy go-to for the everyday. With SRtech Quinn's many upgrades -- including memory foam insoles, flexible design and enhanced traction -- independent walkers can make the world their playground.  SRtech™ provides a comfortable yet sturdy foundation for feet, enabling toddlers to walk steady on their own.