Rubber soleCOMFY - Soft multilayered cushioned insole enables comfy walking experienceNON-SLIP - Flexible and Slip Resistant Rubber Outsole for a Pleasurable and Safe Walking ExperienceCONVENIENCE - Easy to Take on or Take off, Hook and Loop Closures Design can Easily Adjust the SizeOCCASION - Great for daily wear, Indoor and Outdoor activities, Girls Sandals for Dress, Party, Holiday, Wedding. And Make a Perfect Baby shower, Birthday GiftPlease measure your girls' FOOT LENGTH and add 0.2~0.13 inches to find the insole length in OUR SIZE CHART in the LAST PRODUCT IMAGE to ensure the possible best fit