In Thunderball, Bond wears a short black boot with his suits. This style that finds itself between the height of a shoe and a more typical boot is often called a demi-boot. The Thunderball boot has no laces, but it has elastic under the instep to help get it on and off while helping it fit snugly around the foot. The literary Bond ‘abhorred laces’, so this shoe is quite appropriate for the character, albeit with an update for the 1960s. Because of the plain toe it is more formal than the casual loafers or moccasins that the literary Bond wore and more acceptable for a suit. Since it is also a boot and has a very plain design, it can also dress down easily too, making it a very versatile style.
The Thunderball demi-boot is made from three pieces of leather: the vamp and the two quarters. The two quarters are held together over the instep and under the vamp with a strip of elastic. Edward Green made a similar boot they called the ‘Aintree’, but in the 1960s it was a more popular style that many shoemakers produced. In You Only Live Twice, Bond wears a shorter shoe version of this style
Sean Connery wears a different demi-boot in Goldfinger. The boot (pictured below) is more like a short Chelsea boot with a elastic gusset on the sides and can be seen with the dark brown striped suit in the Fort Knox scene as well as with the black knitwear and flannel trousers on Goldfinger’s laser table.