We love this double walled porcelain travel mug with handy flexible silicon lid featuring the new "Green Ferns" design from the Kew "Garden Delights" Collection. Now you can have your double frappachinos and feel good about the environment as it"s really the only coffee cup you"ll ever need.Admire the organic shape and beauty of the fern with this collection. Illustrations are taken from "The Ferns of Great Britain and Ireland" by Thomas Moore (1821-1887) who became curator of Chelsea Physic Garden in 1848 and produced and edited a variety of books about ferns and contributed to many botanical magazines, including "The Floral Magazine" and "The Gardeners" Chronicle". Product Information Dimensions:14.8cm high 9.5cm wide at rim. Capacity 260ml (9 fl oz) Double walled porcelain and silicon lid.Dishwasher and microwave safe. We, Creative Tops, donate a percentage of the sale to Kew Gardens. Designed in England by Creative Tops.