It took us 18 Months of wadding through crap coffee cups that didnt tick all the boxes to find this bad boy, but we did it. We found the cup worthy of putting our name too. This Keep Cup / Travel Coffee Cup Is double walled, vacuum sealed, Stainless Steel 304 Metal. Her 500ml size is great for Grande, Large and tall cups of coffee. With Starbucks giving you a decent discount for Bringing Your Own Cup. The grip and feel is perfect Available in 5 Colours (Green and White Pearl Being the Most Popular). Oh yeah the most important bit it fits in your car cup holder.