I have the Nav XL (32oz) in dark aura.
I have the Nav XL (32oz) in dark aura. Pros: the color is lovely, it keeps drinks warm for an adequate amount of time. Cons: the design is awful. The cap frequently leaks and gets stuck so it's impossible to open. It is the most poorly designed travel mug lid I've ever had. I've had it less than a year and it's completely unusable now, not a single person I know can remove the lid. When I left a review on the BruMate site it was never posted. When I asked them why, they said it was posted. It's not, my review is not on their site. They get around large numbers of negative reviews by filtering them on product color and frequently changing colors available. That, or they hide/remove negative reviews instead of improving their products. Overall, they are a shady company with poor quality travel mugs.