I always read a lot of reviews before I buy something online. The general consensus is that this swimsuit needs to run a size up for a good fit. My 5.5 year old daughter is usually at 5/6 and approaching 6x. This item is suitable as a swimsuit with some stretch. I bought these in 6x7 based on reviews and they fit her perfectly!
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Fancy Girls Communion Dresses White Girls' Clothing in Dresses
53 Review
Castle Fairy Pageant Wedding Communion Girls' Clothing for Dresses
53 Review
Rainbow Toddler Princess Sleeveless Sundress Girls' Clothing and Dresses
57 Review
Amazon Brand Sleeveless Unicorns Metallic Girls' Clothing in Dresses
75 Review