Zimmermann Girls Dresses. Fashion category - Casual Dresses. SKU - 9629DSS241-ECR. Color - Ecru. Zimmermann Girls Halliday Puff-Sleeves Dress. This Dress from Summer Swim's 2024 Collection is a charming kids' denim dress featuring puff sleeves, shell buttons, flower doily trim, elasticated sleeve hems, and frilly details. Material - Cotton.