In the early days I too was asked to design for two international fashion houses. This I could not do. The reason, FUR! Unfortunately that was always hidden somewhere in the contract. For those who do not know magazines survive on advertising space as well as sales and miss Wintour not only wears fur but her biggest advertiser's are fur companies. Fendi is not just handbags and sunglasses.
There are so many incredible imitation furs on the market now there is simply no need for real fur, and don't even get me started on Ugg boots.