Victoria's Secret model Alessandra Ambrosio was recently spotted carrying the Celine Trapeze bag from the Winter 2012 collection. She paired it effortlessly with a dark black tunic and khaki flat sandals. This version of the trapeze (and there are many) features a black suede flap with white wings (the white wings are specific to this collection). The base is in a dark khaki which really makes the black and white pop out.
The bag retails for $2,300 USD in stores and should be available at your local designer retailer.