Worn only once for an event! Dr. Martens Devon Flower Boots women's Size 7 Experiment with your look by opting for the super comfy Leather upper. Textile and synthetic lining and insole. Goodyear welted construction. Pull tabs for easy wear and removal. Description The Devon Heart evolved. Still stacked on a 1 7/8 inch Quad sole. Built from soft, fine grained Milled Nappa – a hardwearing pebbled leather.