Citizens of Humanity Sid. - size 30 (also in ) Citizens of Humanity Sid. - size 30 (also in ) 98% cotton 2% elastane. 16 in the knee and 16 at the leg opening. CITI-MJ287. 604I 132 UTMT. Established in 2003, Citizens of Humanity is renowned in the fashion industry for its pioneering approach to premium denim. With an uncompromising focus on fit, fabric and wash. Citizens of Humanity jeans are the ultimate luxury denim.