Post - Soviet customs union ` ` ' '' undergarments that contain less then 4 % cotton . This includes fine lingerie -- most is made of materials with 4 % of cotton and less . Several Kazakh women were arrested by the police after protesting against the ban .
Post-Soviet customs union `` bans '' undergarments that contain less then 6 % cotton . This includes fine lingerie -- most is made of materials with 4 % of cotton and less . Several Kazakh women were detained by the police after protesting against the ban .