Ashley is a size 16 in her true size XL. If you want more room and length to lay flatter and longer you can size up one  

Details

Long Sleeve Full Front Zip Jacket

Brand: Heimish

Color:  Olive

Sizing

S (2-6) | M (8-10) | L (12-14) | XL (16-18) | 2X (20-22) | 3X (22-24)

Rachel (Size 6 top/Size 8 Bottom) wears size Small

Ashley (Size 16 regular and 40H bust) wears size XL

Fabric Fit & Feel

77% Cotton 23% Poly

T-shirt Soft

Relaxed fit with room in the tummy (Taco friendly :-) 

Measurements (approximate and taken while laying flat)

Length from shoulder to bottom seam: Medium 26 Inches | 2X 28 Inches

Bust width: Medium 42 Inches | 2X 46 Inches