Every CORKCICLE® purchase helps bring clean water to people in need through CORKCICLE’s partnership with charity : water. Your perfect morning is only a Glass Mug Set away. This set includes two 12 oz. glass coffee mugs that are perfect for sharing, collecting, or gifting. Elevate every sip of espresso, latte, chai or earl grey with a refreshing, modern take on your favorite mug. Crafted with lightweight yet durable double-walled glass that's both hot and cold ready.