Tag says K1, I'm thinking it probably would fit as a size 8. 

PMA Kids Elite Pearl Weave Jiu Jitsu Gi Black Playwell Peal Weave Jiu Jitsu Gi was developed specifically for Brazilian Jiu Jitsu competitions. Designed with super lightweight and ultra soft fabrics that will make your grappling experience extremely comfortable. Great for both advanced and beginners BJJ practitioners. The jacket is a 380 gram pearl weave pre-shrunk cotton. The weave of the fabric also ensures that it will not rip even when put through its paces. The triple stitching across stress points provides lasting durability.

After numerous requests for a uniform specifically designed for women, FUJI Sports with the assistance of Judo legend and MMA Superstar Ronda Rousey, is proud to announce the launch of the FUJI All Around Pink BJJ Gi.   This is the top only, no belt or