Last month we featured Mango's monochrome 'Belmondo' bags and this 'Lulu' bag by Jaeger is along the same lines ... albeit bigger and more expensive. 100% leather and available in both white and black (although the black bag also has a black ribbon, rather than a contrasting one), it costs £399.
Related: Jaeger's quilted 'Bond' bag | Monochrome bags by Oasis and Accessorize | Emily Trotter silk vintage scarf bags