LEVI'S Ribcage Straight Ankle in Blue. - size 30 (also in 25, 26, 27) LEVI'S Ribcage Straight Ankle in Blue. - size 30 (also in 25, 26, 27) 88% cotton 9% lyocell 2% elastomultiester 1% elastane. Made in Cambodia. Machine wash cold. Button fly. 5-pocket styling. Stretch denim fabric. Cropped styling. 8 at the leg opening. LEIV-WJ539. 72693-0281. 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.