LEVI’S Slim 511 in Black. Size 28, 31, 38. 68% cotton 31% lyocell 1% elastane. Made in Pakistan. Machine wash. Zip fly with button closure. 5-pocket design. Made with 15% organically gown cotton and tencel lyocell, a soft fiber sourced from sustainably harvested wood. 16 at the knee narrows to 15 at the leg opening. LEIV-MJ1. 04511-4969. Levi Strauss & Co., established in 1853, is a brand with a loyal, worldwide following. Their innovation with the co-invention of the blue jean was an integral part in creating their culture of self-expression and American cool that still resonates today. Each ready-to-wear design produced by the iconic label is made with special attention to craftsmanship, progress, and sustainability.