GRLFRND Billie Track Pant in Black. Size XXS, M, L. Self: 100% lamb nappa leather Lining: 100% cotton. Made in India. Professional leather clean only. Pull-on styling with elastic waistband and drawstring closure. Side seam pockets. Smooth leather fabric. 20 at the knee and 20 at the leg opening. GRLR-WP32. GR45901101887. True to the iconic Supermodels of the 90s, GRLFRND denim pushes the limits of basics to a new level of cool. Inspired by the Cindy’s and Naomi’s of the world, the line is sleek with an edge and always concerned with a flawless fit.