The brief was to let people know Catsan removes 99% of cat wee odours. This is how we made people take notice. The ads run during Paris Fashion Week. View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize The bag everyone should own wasn’t a Birkin, it was a Catsan. So we hired a bunch of models to hijack fashion week walking around with bags of cat litter.