Model: 578-3639 PIKOLINOS Perforated semi-vegetable tanned leather uppers Lining 75% leather, 25% textile Synthetic outsole and removable insole Gel- foam padded mid-sole PIKOLINOS Women's Jerez Perforated Leather Loafers. An eye-catching pair of signature Pikolinos pumps featuring perforated semi-vegetable tanned leather uppers. Designed with elasticated strips and gel-foam padded mid-sole for added comfort. Hand-sewn detailing. Created by Spanish footwear manufacturer Pikolinos, that's been established for over 30 years. Their collections are best known for its Mediterranean vibe, comfort, and high quality with finely crafted finishes that are naturally good.