- Polo Ralph Lauren Kids - Girls' Size Guide - Polo Ralph Lauren Kids - Boys' Size Guide - Polo Ralph Lauren Baby Size Guide - The Polo Ralph Lauren® Kids Stretch Mesh Sleeveless Polo Shirt is easy to dress up or down, just like your little one's busy day. Made with breathable stretch-cotton mesh, this regular fit tee features a ribbed polo collar, four-button placket, ribbed armholes, and even vented hem. - Buttons custom-developed with a "Ralph Lauren" logo. - Pull-on style. - 98% cotton, 2% elastane. - Machine washable. - Imported.