Nike Shoes React Presto Black Sneakers 3 sizes available: (Shoes are the Youth size equivalent to women's) Women's 7.5 (6Y) Women's 8 (6.5Y) Women's 8.5 (7Y) Brand New With Box. Fast shipping The Nike React Presto has a slip-on design that feels snug and is easy to put on and take off. Nike React technology feels incredibly bouncy for all-day comfort.