KIDSCOOL SPACE is a professional kids jean manufacturer & seller over decades,we made a large quantity many kinds of good quality and popular jean clothes every year This is a cute and classic Jeans and it will make your girl the cutest one.The size below is just a guidance,please kindly consider your actual needs and choose a correct size,thank you for your attention,have shopping fun! How to choose apparel size? Detail sizes: 1inch=2.54cm Size 3-4 Years: Pants length:9.3 in 1/2Waist:11.3 in 1/2Hip:12.5 in Recommended height:38.2-40.6 in Size 4-5 Years: Pants length:9.3 in 1/2Waist:11.3 in 1/2Hip:12.5 in Recommended height:40.6-42.9 in Size 5-6 Years: Pants length:10.1 in 1/2Waist:11.7 in 1/2Hip:12.9 in Recommended height:42.9-45.2 in Size 7-8 Years: Pants length:10.9 in 1/2Waist:12.1 in 1/2Hip:13.2 in Recommended height:47.6-49.9 in Size 9-10 Years: Pants length:12.4 in 1/2Waist:12.9 in 1/2Hip:14.8 in Recommended height:52.2-54.6 in Size 11-12 Years: Pants length:13.2 in 1/2Waist:13.6 in 1/2Hip:15.6 in Recommended height:56.9-59.2 in