Like all of Timothy Dalton’s clothes in Licence to Kill, his royal blue t-shirt is a size too large by today’s standards. Within the context of the story, this is mostly likely a shirt that Bond found rather than bought. The shirt looks even larger when it’s wet, and the large size makes it especially cumbersome for swimming. The shirt has a large crew neck, an open patch breast pocket and sleeves down to his elbows. Dalton wears full-cut dark blue cotton trousers, which are either chinos or jeans. He wears a black belt but no shoes.
In this scene Bond is likely attempting to dress like what the henchmen aboard the Wavekrest wear without having their actual clothes to wear. Bond’s shirt is a little darker and it doesn’t have the Wavekrest emblem on the left side of the chest that the henchmen’s shirts have. Bond’s trousers are a little darker than the security guard’s and have a fuller cut compared to the henchmen’s bell-bottom trousers.