ENTRINO MATERIAL: SYNTHETIC MATERIAL. THESE SANDALS ARE MADE UP OF HIGH QUALITY SYNTHETIC MATERIAL STAYS STRONG AND DURABLE - MEANING THE SHOES WILL LAST MUCH LONGER. LIFESTYLE: FORMAL / BUSINESS. PAIR THESE STYLISH CENTRINO SHOES WITH YOUR SHIRT & TROUSERS FOR THAT PERFECT LOOK. OFFICE WEAR, OFFICE SHOES, FORMAL SHOES, SLIP-ON, BUSINESS SHOES. CLOSURE: SLIP-ON. CENTRINO SHOES ARE HAND-CRAFTED FOR THAT PERFECT FIT. PERFORATED INSOLE LETS AIR PASS THROUGH THE MATERIAL.