Nike Revolution 6: designed for little ones' feet. The Nike Pico 5 shoe, specifically designed for little feet, guarantees a secure fit and perfect fit. Easy to wear, the shoe was created with the specific needs of children in mind. Synthetic leather upper for a comfortable, durable fit. Hook and loop straps with VELCRO® closure for easy wearing of the shoe. Wrap-around sole in the forefoot for greater resistance. Deep, flex grooves in the forefoot for natural range of motion.