The shoe is designed for young children for an easy walking and running experience. The soft upper hugs the foot and keeps it in place, protect children's foot from the inside out. Conforming Cushioning The one-piece form pylon sole is a stretchable material that hold your every steps for better impact absorption with toe-to-heel cushioning. Flyknit material Flyknit is a super-lightweight and breathable material. It is relatively soft. As the upper of the shoes, it wraps the foot, protect from the inside out while walking or running. No Laces The 1-piece form upper is designed without shoelaces, makes the shoe easy for children to take on and off.