It’s called Cortiça - (kor-T-sa) Portuguese for cork.
Robert searched for the perfect travel mug for 15 years. The only travel mugs he had seen in coffee shops were plastic or metal, affecting the taste of his coffee—which didn't fly. Also, considering the health risks associated with plastics and hot liquids, he wanted to steer clear from that as much as possible. He wanted to drink from porcelain, just like at home; however, as his wife can attest, the porcelain mugs that left the house did not survive his truck, shop, or lifestyle. For years, he couldn’t find the perfect porcelain mug that could endure being on the go, so finally, he just decided to build it.
Robert has been building houses, furniture, and longboards for years. Recently, he started building fly rods and working with cork. He realized that cork was the perfect material to insulate and protect a porcelain mug. Cork is a great product because it insulates to keep the coffee or tea hot, serves as a built-in coaster so you never have to worry about harming your furniture, and is impact resistant.
Also, cork and porcelain are two very natural products: bark and clay. Should your mug ever need to be thrown out, it will decompose and turn into fill, unlike metal or plastic that stay in the waste stream.
After many designs and prototypes, Robert found the mug that he always wanted, and thinks you'll love it too.