Chukka boots are ankle-high leather boots with suede or leather uppers, leather or rubber soles, and open lacing with two or three pairs of eyelets. The name chukka possibly comes from the game of polo, where a chukka is a period of play. It can be worn with both suits and casual wear.
Boat shoes (also known as deck shoes) are typically canvas or leather with non-marking rubber soles designed for use on a boat. A siping pattern is cut into the soles to provide grip on a wet deck; the leather construction, along with the application of oil, is designed to repel water; and the stitching is exceptionally durable.
A monk strap is a style of dress shoes with no lacing, instead secured on the feet by one or multiple buckles and straps. It is a moderately formal shoe: less formal than a full Oxford but more so than an open Derby. In between these, it is one of the main categories of men's shoes. It often has a cap toe and is popular in suede.
An Oxford shoe is characterized by shoelace eyelets tabs that are attached under the vamp; a feature termed "closed lacing". This contrasts with Derbys, or bluchers, which have shoelace eyelets attached to the top of the vamp. Originally, Oxfords were plain, formal shoes, made of leather, but they evolved into a range of styles suitable for formal, uniform, or casual wear.
The brogue is a style of low-heeled shoe or boot traditionally characterized by multiple-piece, sturdy leather uppers with decorative perforations and serration along the pieces' visible edges. Brogues were traditionally considered to be outdoor or country footwear not otherwise appropriate for casual or business occasions, but brogues are now considered appropriate in most contexts.