Sidecca Vintage Grandpa Polka Dot V-Neck Button Down Cardigan Sweater This adorable granny sweater features a V-neck, ribbed detail on hem and neckline, button up closure, and has the cutest polka dot print. Knit. Fabric provides stretch. Junior sizing. Materials: 100% Acrylic. Care Instructions: Hand wash cold with like colors. Do not bleach. Do not twist. Lay flat to dry. Imported.