Nike LeBron XVII Auto TDV Super Vroom Toddler Sneaker The LeBron 17 Super Vroom is modeled after powerful monster trucks and tractors so little ones can feel strong like The King. The lightweight design has a hook-and-loop strap to make it easy to take on and off. Textile material provides a structured feel. Rubber tread for traction and resistance. Fabric material for a structured fit. Sole material: Rubber Outer material: Textile Closure type: Lace-Up CK0611-700