Stainless Steel Napkin Holder Where Can I Find A Stainless Steel Travel Mug That Has A Stainless Steel Interior?

Where can I find a stainless steel travel mug that has a stainless steel interior? - stainless steel napkin holder

I can not find, travel mug, stainless steel with a stainless steel interior. Most come with a plastic interior, which I like. Where can I find a stainless steel interior?