Reiss Billy Half Zip Textured Polo T-Shirt Navy Blue, size 11-12 but I personally feel like this runs small, fits like a 10. Gently worn because my son quickly grew out of it. Quality material. THE POLO T-SHIRT IS A WARDROBE STAPLE. GIVE IT AN UPDATE WITH THE BILLY JR, CRAFTED FROM A COTTON BLEND WITH A TEXTURED FINISH, ADDING NUANCE TO A CLASSIC LOOK. THIS STYLE IS CUT WITH SHORT SLEEVES AND A HALF-ZIP NECKLINE. WEAR WITH THE COORDINATING SHORTS FOR A CONSIDERED SUMMER ENSEMBLE. HALF-ZIP NECKLINE. SHORT SLEEVES. TEXTURED FINISH.