Please measure your foot length clearly and compare the details with the size table before you select the size .
US 4=CHINA 34=Foot length 22 cm
US 4.5=CHINA 35=Foot length 22.5 cm
US 5.5=CHINA 36=Foot length 23 cm
US 6=CHINA 37=Foot length 23.5 cm
US 7=CHINA 38= Foot length 24 cm
US 8=CHINA 39= Foot length 24.5cm
US 8.5=CHINA 40= Foot length 25 cm
US 9.5=CHINA 41= Foot length 25.5 cm
US 10=CHINA 42= Foot length 26 cm
US 11=CHINA 43= Foot length 26.5 cm
US 12=CHINA 44= Foot length 27 cm
US 13=CHINA 45= Foot length 27.5 cm
US 13.5=CHINA 46= Foot length 28 cm
US 14=CHINA 47= Foot length 28.5 cm
US 15=CHINA 48= Foot length 29cm

US 16=CHINA 49= Foot length 29.5 cm
US 17=CHINA 50= Foot length 30cm