A Junior XL size typically fits kids and teens around 13 to 16 years old, depending on the brand, generally corresponding to heights of 155-176 cm (5'1"-5'9") and larger youth or smaller adult measurements, bridging the gap between kids' and adult clothing.
While a size XL is designed to fit a size 16/18, she may prefer to wear a size 1X, which equates to a size 14/16. This is because the plus-size section was designed with curves in mind. That means the arms will likely fit much better, the neckline will lay better, and the sleeves won't be too long.
there are actually 4 main sizes: Pee-wee (aka K2 or size 6) for ages 6 to 9 year olds; Junior or (aka "TDJ" or size 7) is for ages 10-12; and Youth (aka "TDY" or size 8) for ages 12-14; and finally the Official/High School/College size are the same (aka "TDS" for "Standard" or size 9) are for 14-years old and up.
The transition from children's to adult sizes usually happens after size 13, which moves into an adult size 1. This shift often comes between ages 8 and 12, though every child is different. Following size 13, the next size is an adult size 1. This system is consistent across the UK, US, and Australian sizing charts.
Youth XL is an Adult Small in most cases.
Juniors' sizes are generally smaller than women's sizes, even if the numerical value is similar. Women's styles have larger measurements for the bust, waist, and hips compared to junior sizes.
I know these shirts were in the toddler section at Target, but I recently found it in the boys section. Size XL (16) is equivalent to a women's medium or men's small 🙌.
Although baby and kid clothes are often sized by age (newborn, 6-9 months, 2T, etc.), these size labels should simply be used as a starting point. Children grow at different rates, and each child's growth is unique, so keep in mind you may need to purchase a size that doesn't match the child's age.
Teen clothing is closely related to ADULT sizing. Enter these items into Men's and Women's categories. A Youth XL will go in Girls, but a Teen 14 will go in Women's. For example, a 'Teen' 14 should be closer to fitting a Women's L or XL while a Youth XL or 14 should be just below smaller adult sizes.
Understanding Tween and Junior Fashion
Tween fashion generally targets children ages 8 to 12, while junior apparel is for older teens, typically ages 13 to 17. The main difference between the two is in body shape and style preferences.
Junior sizes run a size smaller than "Misses" or "Ladies" garments. Junior garments are closer fitting, are cut shorter from neck to waist and are designed to fall at or above the waist for tops and at or below the waist for bottoms. Adults buying Junior sizes should buy one size larger than usual.