Details Inspired by their iconic Wave Technology, Mizuno introduces the women's Mizuno Waveknit R2 shoe. With a Wave construction as it's base, Waveknit is designed to provide natural and dynamic fit through its stretch and hold abilities. Upper All new WAVEKNIT™ upper is constructed without any reinforcements, varying thread qualities offer expansion and support while foot is in motion New Premium Sockliner Midsole U4icX - A unique midsole compound providing high comfort performance, while being extremely light weight PEBAX Wave Plate Outsole Solid Rubber Outsole Heel Plush heel collar for outstanding fit and feel Forefoot N/A Offset 12 mm Width B Weight 8.6 oz Mizuno Waveknit R2 Women's