Based on one of Dr. Martens best-selling women's collections, the Sorella has added depth to the classic air-cushioned sole and subtle upper detailing, creating an everyday shoe with attitude. 6 Eyelet Lace to Toe Shoe. Tan Greenland, a waxy leather with an attractive two-tone color surface. Goodyear-welted, the upper and sole are heat-sealed and sewn together. Dr. Martens air-cushioned sole.