US size 5 =Size34 = 220mm(bare feet length)

US size 5.5 =Size35 = 225mm(bare feet length)
US size 6 =Size36 = 230mm(bare feet length)
US size 6.5 =Size37 = 235mm(bare feet length)
US size7 =Size38 = 240mm(bare feet length)
US size 7.5 =Size39 = 245mm(bare feet length)
US size8 =Size40 = 250mm(bare feet length)
US size 8.5 =Size41 = 255mm(bare feet length)