$107, warehouse

It's almost unfathomable that I don't already have a lightweight motorcycle jacket like this in my closet! Seriously, the concept is genius, because it's perfect for California's cool summer evenings (or east coast buggy nights) or just plodding around a frigid air-conditioned office. It's definitely the kind of thing I'd dress up (slung over my shoulders with a strapless dress) or down, like this...

1. Stella McCartney top, $800, netaporter.com
2. Warehouse biker jacket, $107, warehouse.andotherbrands.com
3. Clare Vivier wallet, $230, shopbop.com
4. Gucci ballet slippers, $425, neimanmarcus.com
5. J.Crew jeans, $115, jcrew.com