Mizuno Enerzy Rider (Junior)Mizuno Enerzy Rider Get a burst of energy in each step with the Mizuno Enerzy Rider JR. Designed to look and feel like the running shoes used by pros. Featuring the Mizuno Energy midsole that gives excellent energy return and incredible cushioning. The padded collar and tongue gives added step in comfort. Upper Breathable knit upper. Outsole The rubber outsole utilises minimal flex grooves and delivers stable transitions and a propulsive feel. Midsole