Size Chart: Tag Size 24=6.5 Toddler: Inner length 14.5cm / 5.7" Tag Size 25=7.5 Toddler: Inner length 15cm / 5.9" Tag Size 26=8 Toddler: Inner length 15.5cm / 6.2" Tag Size 27=8.5 Toddler: Inner length 16cm / 6.3" Tag Size 28=9 Toddler: Inner length 16.5cm / 6.5" Tag Size 29=9.5 Toddler: Inner length 17cm / 6.7" Tag Size 30=11 Little Kid: Inner length 17.5cm / 6.9" Tag Size 31=11.5 Little Kid: Inner length 18cm / 7.1" Tag Size 32=12 Little Kid: Inner length 18.5cm / 7.3" Tag Size 33=13 Little Kid: Inner length 19cm / 7.5" Tag Size 34=1 Little Kid: Inner length 19.5cm / 7.7" Tag Size 35=2 Little Kid: Inner length 20cm / 7.9" Note: * Please note that there is an error of ±0.3 cm due to different measurement methods. the length of sandals you want = foot length + 0.5 cm. * The colors of the products may differ slightly from those of the website, depending on the computer screen resolution and monitor settings. * There may be some rubber odors, please put the sandals in a ventilated place when you don't wear it, the odor will disappear in several days. Service: We offer 100% quality assurance on the products you purchase. If for any reason you are not satisfied about the item you received, please feel free to contact us. We will respond within 1 work day and provide you a satisfactory solution.