Zimmermann Girls Tops. Fashion category - Polo Shirts. SKU - 9239TSS241-MUL. Material - Cotton blend. Color - Multi. Zimmermann Kids Halliday Knitted Cotton-Blend Polo Shirt. This cotton-blend polo shirt features a chevron knit design, a contrasting collar, short sleeves, a front button placket, and a scalloped edge. 84% Cotton, 16% Polyamide.