The Earth experience is natural, comfortable, stylish, healthy, and invigorating for the mind, body, and sole...there's nothing like it! For the latest in footwear and other accessories, look no further than Overstock.com. Earth Zen Men's Black Mules: shoe sizing guide Available in black Leather upper, latex rubber sole Hand clean Made in China Model number Zen Features include: Adjustable strap with gunmetal tang buckle Negative Heel technology Comfort Sphere Comfort Sole Breathable leather lining Natural latex rubber sole Imported