Jeffrey Campbell Yearn Mule in Black. Size 6, 6.5, 7, 7.5, 8, 8.5, 9, 10. Leather and faux leather upper with manmade sole. Made in China. Padded leather insole. Rosette accent at vamp. Approx 40mm/ 1.5 inch heel. JCAM-WZ1701. YEARN. Step into comfort and fashion this season with these new shoes from Jeffery Campbell. Made with premium leather and a German sole. These pretty babies will keep you coming back for more.