- Polo Ralph Lauren Kids - Boys' Size Guide - Polo Ralph Lauren Baby Size Guide - Polo Ralph Lauren Kids - Girls' Size Guide - This short-sleeve version of the iconic Oxford shirt by Polo Ralph Lauren® Kids features a colorful motif of our signature embroidered Pony. Designed with a button-down point collar, buttoned placket, and short sleeves, it's finished with a box-pleated back yoke for a classic, comfortable fit. - Classic fit. - 100% cotton. - Machine washable. - Imported. Measurements: - Length: 24 1⁄5 in - Product measurements were taken using size MD (10-12 Big Kid). Please note that measurements may vary by size.