LEVI'S 501 Straight in Hollow Days - Blue. Size 32 (also in 28, 24, 25, 26, 27, 29, 30, 31). 99% cotton 1% elastane. Made in Macau. Machine wash. Button fly. Structured denim fabric. 14 at the knee narrows to 12 at the leg opening. LEIV-WJ305. 12501-0415. 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.