From Marc Nolan, the Women's Ms. Del Sol Cow Print Hair Calf Bit Buckle Loafer Mules feature: Hair-calf upper (China) Horsebit detail Slip on styling Leather lining Latex memory foam padded insole Rubber outsole Approx. 0.5" heel height Imported. Sizing Notes: Size 5 to 9 runs large. If you wear a half size, size down. Size 10 to 12 runs true to small. If you wear a half size, size up. All Marc Nolan women's shoes are standard B width. Select your true size if you prefer a wider width or up if you wear a half size.