"the shirt from Turnbull and Asser"

Turnbull and Asser is an exclusive and traditional British clothier.  It was established in 1885 and moved to its present location on London's Jermyn Street in 1903.  They have a Royal warrant from Prince Charles, who is one of many high profile gentlemen to enjoy their clothes.  Their shirts are especially popular, and are often sold in bold, striking colours.  They offer a bespoke service, and all shirts are made in the UK.  Two stores have opened in the USA since 1997, in Beverley Hills and New York.  There is also an online service for customers.

Turnbull and Asser official website.