There is a Factory Outlet somewhere around London, unbelievable price and products (umbella, jam, trench coat, T-shirt, sweater, etc.).
I brought a sweater at only HK$ 3XX.00 (the list price in Hong Kong is HK$ 1,XXX.00) 10 years ago and my friend brought a trench coat for me last year at only HK$ 2,XXX.00, the list price in Hong Kong is HK$ 1X,XXX.00.
The model may not be exactly the same as that in Hong Kong, but you will still find the most classic model there.