Women Size Chart:

US4  =CN34=220mm (bare feet length)

US5  =CN35=225mm (bare feet length)

US6  =CN36=230mm (bare feet length)

US6.5=CN37=235mm (bare feet length)

US7.5=CN38=240mm (bare feet length)

US8.5=CN39=245mm (bare feet length)

US9  =CN40=250mm (bare feet length)

US9.5=CN41=255mm (bare feet length)

US10 =CN42=260mm (bare feet length)

US10.5=CN43=265mm (bare feet length)