Jessica Alba Proves A Summer Sundress Works All Year

The concept of wearing last summer’s flirty, flouncy dress into winter isn’t exactly revolutionary. By mid-January, you’re undoubtedly well-versed in all the tricks of transitional dressing. Even so, you could probably use this reminder from Jessica Alba that you can — and absolutely should — bring your sundresses out of storage for a mid-season rendezvous.

Yesterday, she ran errands in a ruffled slip dress, which looked unseasonably adorable with opaque black tights and ankle boots. For copying this look, commit head to toe and go for a flat, no-frills shoe that complements the short and swingy dress. She added a gorgeous gray moto jacket, which cleverly matched the pattern of the dress, and accessorized with the one piece everyone's rocking this month: a green juice to go. Click ahead to get the look — juice not included.