3M=size 60 Suitable Age:0-3 months
6M=size 70 Suitable Age:4-6 months
9M=size 80 Suitable Age:7-9 months
12M=size 90 Suitable Age:10-12 months
18M=size 100 Suitable Age:13-18 months
Please read the size chart carefully before purchase, select your corresponding size. If you have any questions, please contact customer service for help.
(All measurement in cm and please note 1cm=0.39inch)