Hi ladies! I have an odd question. I have a customer who ordered a size toddler 4 flip flops for her daughter's first birthday party. When I went to Michael's their flip flops go by s,m,l,xl etc. So which one would be the correct size for a 1 yr old wearing a size 4T show? I feel strange asking her to measure get kid's foot. My daughter is 5 so I certainly can't remember how big her feet were back then!!! Thought I'd any of you had LOs maybe you could help me out! Thanks!