The cloth in the instep part is widely open, which assures a good fit to the foot and provides good ventilation It is most suitable for high cleanliness cleanroom application Size(cm): 22, 22.5, 23.5, 24, 24.5, 25, 25.5, 26, 26.6, 27, 28, 29, 30, 31 Cleanroom safety booties is also available