This top is so cute! The lace up added so much fun detail to it, and there are so many ways to wear them! It you are in-between sizes, size down. Typical small wearing a small.
Small- Chest-17.5" Waist-20" Length-24.5
Medium- Chest-19" Waist-21" Length-25.5"
Large- Chest-20" Waist-22" Length-26"
Flat across measurements