I would not call this tumbler skinny. It is 2.75" wide at the bottom and 3.5" wide at the top. It just fits into my car's cup holder. It is plastic on the outside and stainless steel on the inside with a transparent plastic cover. The cover has a sliding opening valve. It is leak-free, it works well.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★
#Car #ProductReview #5-star