Usually M in women, but I didn't find anything there, so I found them in children and read a lot of reviews. Size XXL fits perfectly! DTILL LOOKS FOR PINK!
Shamrock Girls' Summer Sleeve Shirts - Girls' Clothing and Tops, Tees & Blouses
44 Review
Kid Nation Short Sleeve Crew Neck Heather Girls' Clothing for Tops, Tees & Blouses
52 Review
Amazon Brand Sleeveless Chambray Multi Dots Girls' Clothing
62 Review
Adorable TABNIX Toddler Little Girls’ Short Sleeve T-Shirts: 4-Pack Graphic Cotton Tops for Size 2-7 Years
44 Review