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Diffusion is quite a large chain of stores that span a lot of the country, especially in the West Midlands area. There are four Diffusion stores around the West Midlands and several G-Star Raw stores dotted around the rest of the UK. Their online presence is very cleanly laid out and lists all of the brands that they carry.
Six Whiting Street's Suffolk store is in a magnificent Grade II Listed Building that dates back to the 16th Century. It covers two floors and has several rooms, a very pleasant environment indeed. There's a great mix of brands and everyone there knows what they're talking about. Their website is very artistic and features their product range listed by brand name.