If you’ve ever had the feeling that your outfit is too drab after you’ve already left home, add Fendi’s latest collaboration to your winter wish list. Joining forces with innovative Japanese label Anrealage, Fendi created pieces fabricated with UV-responsive technology, allowing the collection of coats, accessories, and bags to change from a stark white and black to a warm yellow when exposed to sunlight. It might be the most subtle way to add a dose of color into your wardrobe and literally brighten your mood when you step outside.