Waterproof PU nubuck & mesh upper for lightweight, breathable comfort, Dri-Tec waterproof, breathable membrane keeps feet dry, Ghillie lacing system creates a snug, secure fit, Gusseted tongue keeps debris out, Unique Big-Fit System allows children's feet room to grow so that shoes last, Steel shank delivers support & stability, MDT outsole improves grip & provides durability, Perfect for kids on the move