- Janie and Jack Kids' Belt Size Chart - Janie and Jack Kids' Apparel - Janie and Jack Kids' Footwear Size Chart - Janie and Jack Sock & Tights Kids' Size Chart - The Janie and Jack® Heart Sweater Dress is a soft-knit infant sweater dress designed to keep little ones warm while looking sweet and stylish. This dress features crew neckline, long sleeves, three button back closure, heart details and a ribbed skirt, it's one to love for Valentine's Day or any day. - 55% combed cotton, 24% rayon, 21% nylon. - Machine washable. - Imported.