Rugby shorts are a type of shorts that are worn while playing rugby. They are designed to take the strains of the game and have traditionally been made from cotton.
Law 4 of the International Rugby Board (IRB) Laws of the Game of Rugby Union 2010 relates to the clothing that a player may wear while playing rugby union. In particular:
"A player must not wear any items containing buckles, clips, rings, hinges, zippers, screws, bolts or rigid material or projection."
"A player must not wear shorts with padding sewn into them".
Shorts should be comfortable, as tight shorts increase the chances of sustaining a serious injury. The longer and baggier shorts are, the easier it will be for opponents to pull an opponent back. The colour and style of shorts are determined by the players club.
Rugby shorts must be able to withstand punishment and should be thick enough to provide some protection while playing. Most have pockets and many have a drawstring to prevent them coming down when tackled. While the most popular material has been cotton, modern shorts can also be made from higher grade polyester with reinforced seams. The use of these shorts is increasing as they are lighter, more durable, more comfortable, and better retain their color compared to traditional cotton shorts.
The use of hard plastic padding of any kind, including jock straps, is forbidden in most leagues. However, in the United States, the high-padding of American football has influenced some junior leagues to allow, or in some cases require, jock straps.
Canterbury of New Zealand is the most popular producer of rugby kit. Kooga are a very popular supplier, particularly to rugby league teams. Triple Play is also a very popular manufacturer for both Union & League, and they make their short in Australia.