Undress code

An undress code is a dress code or social norm which sets an upper limit on the amount of clothing that can or should be worn. 
Promoters of the entertainment industry, including sport, attempt to "sex-up" the entertainment by under-dressing the entertainers or sportspeople. For example, in 1999, the beach volleyball regulatory body set a limit on the amount of clothing allowed for the athletes to wear during competition. These require swimsuits as uniforms for women. This has led to some controversy, and in 2012, more concealing clothing was permitted. Similarly, organisers of some swimsuit competitions set a low maximum threshold for swimwear for contestants.
The social norm in some countries is to wear considerably less or briefer clothing than in others. Fashions since the mid-20th century has been towards briefer, more form-fitting styles, as well as thinner and sheer materials. In some cultures, including some in Africa, Latin America and South-East Asia/Oceania, traditional dress consists of less clothing than those of the West. Some religious traditions or rituals require the members to be nude, as was the case with the ancient Indian gymnosophists or the Christian sect of the Adamites (the custom is still practised by ascetics of certain Indian religions, as in Jainism). (see also Christian naturism).
Laws in many countries require a person to undress in some circumstances when requested by a customs or police officer in a strip search.