Nike Court Borough Low Next Bloom Big Kids' Shoes Inspired by retro-hooping style, the Court Borough is made with synthetic leather for an old-school feel and reimagined with modern comfort, like extra room in the toe. Synthetic leather in the upper helps add durability and structure. Rubber in the outsole helps provide durable traction and features flex grooves for flexibility. Rubber sole has a full cupsole stitch for exceptional durability.