From Tilly and the Buttons:
Cool, casual and modern, Billie is an ultra-comfy sweatshirt or sweater dress that you can whip up in an afternoon. It has a relaxed shape, crew neckline and classic trim details. Keep it effortless with cuffed, straight sleeves, or add some drama with on-trend balloon sleeves and deep cuffs.
Choose between top length which sits on the high hip, or mini dress which finishes 10cm (4in) above the knee with gorgeous cutaway pockets. You can dress it up or down, whether you’re wearing Billie for a meeting, dinner date or Sunday on the sofa.