Vegan-friendly style Martina4. The new season version of one of our biggest-selling ladie's mid-leg boots, the Vegan-friendly style Martina4 features our renowned 3-heart outsole. With an easy-care man-made upper this style is perfect for all-day, everyday wear. The textile lining is complemented by our new removable textile-covered Memory Foam insole. Stylish 8 eyelets lace-up design and finger pull tab plus a full-length zip make for great fitting and ultra-stylish boots.