It's available in selected stores including the Oxford Street flagship which has been counting down to the launch for the past week. There are some great coats in the range from just £50 for a light weight down jacket to £90 for a double breasted coat. There are also light cotton tops from £15.
The collaboration was first revealed in March and is therefore expected to be very popular, so I would recommend getting down there today if you want anything! The ad campaign stars Isabeli Fontana and was shot by David Sims.