Thanks to the people at ajb007.co.uk, there is a lot of information on this casual outfit that James Bond wears for poker at the One&Only Ocean club in the Bahamas in Casino Royale, particularly the shirt. Here’s where most of the following information comes from:
This shirt has very interesting origins. It was originally a hidden-button-down shirt from the Macy’s house brand Alfani and later altered into a much different style. The collar buttons and hidden tabs were removed so the collar could be worn spread open like a camp collar, and the shirt tails were straightened into a straight hem with short side vents. The reason I would guess for choosing a hidden-button-down shirt as opposed to a shirt with a regular collar is because this kind of collar has a much softer construction and doesn’t have an stiff interlining like a regular collar does. The sleeves have button cuffs and the shirt has a breast pocket.
The shirt has been described by costume designer Lindy Hemming as “heavy navy blue”, and from the costume card the swatch is a very dark navy that looks black in all but direct sunlight. No hint of blue will show on screen in the dimly and warmly lit scenes.
The fabric is polyester and woven in a twill weave. Polyester was chosen for a soft look, but in reality this would not be a practical choice for the Bahamas because it doesn’t breathe well. A cotton or linen shirt would be far more comfortable in the heat and humidity but would not look as presentable.
The plain-weave linen trousers are the “Larked” model from Ted Baker. The colour is called “mink”, which can best be described as taupe. They have a flat front, straight-cut legs, a full break and plain hem. The side pockets are slanted and there is one rear jetted pocket on the right. There are belt loops but there is no belt in them. Bond’s shoes are black.