Baby Size Chart – BBmio Pima Cotton
Our baby size chart is designed to help you choose the perfect fit for your little one. BBMIO garments are made from premium Peruvian Pima cotton, known for its softness and comfort for delicate skin. Use height and weight measurements for the most accurate sizing. Our size chart is based on month, inches and pounds.

Fit recommendation
If your baby is between sizes, we recommend sizing up for longer wear and extra comfort. Babies grow quickly, so if you're unsure, choosing the next size up may extend wear time. The natural stretch of Pima cotton allows flexibility while maintaining shape.
Fabric note
Our premium Pima cotton fabric has a gentle stretch and is pre-washed to help reduce shrinkage. It is designed to maintain its exceptional softness and color, wash after wash. To extend the life of your garment, we recommend washing in cold water and drying on low heat or laying flat to dry.