Theory Lanai Blazer
Madeleine Swann (Léa Seydoux) wears a grey Theory Lanai blazer in SPECTRE.
She wears the jacket in the Austria scenes, when she is being kidnapped from the Höffler Klinik by Hinx and his henchmen. The blazer can be spotted clearly when James Bond and Swann talk to eachother after the chase with the airplane and Land Rovers.
The color of the jacket is grey, and the material is crepe. This combination is currently not produced anymore, so difficult to find.
Theory's Lanai blazer has a collarless design, tailored for a slim fit, structured padded shoulders and sharply cut open front.
Thanks to sruzgar for the ID