Boundless Voyage 350ml Camping Titanium Cup Double Wall Mug with Lid Ultralight Tea Coffee Mug for Outdoor Picnic Backpacking Hiking Travel Office Home use Ti3022D

This titanium cup works well, however it’s interesting. Because there is a sealing ring of silicone, and no air outlet on the lid, it closes pretty securely which makes it pretty leak resistant. However, if you put hot liquids and snap on the lid, it’s going to create a vacuum and make it really hard to open it back up. So I don’t recommend covering the lid all the way after pouring a hot drink. Besides that, the cup is fine. It’s insulating, but not entirely as the cup still gets warm still to touch, but not overly hot. This is probably good for cold camping either way to keep hands warm.

Like most other double wall titanium, it is not vacuum insulated so it loses heat faster than vacuum insulated thermoses and cups. But the double wall slows down the heat loss keeping the contents warmer longer and equally important, it doesn't burn your hands. Instead it will warm your hands which is often delightful. I really like the lid and I really like the slight flare at the top which makes it less likely to slip out of my hand. It sits flat which is more than I can say for my more expensive Snow Peak cup. Overall this cup is better than the Snow Peak (except weight-wise). I hope they make a 450 ml version someday with the lid and the flared top.

It does mostly what you were looking for. People say it should have a pour through lid?? No. Just gross. More place for things to foul up, or more moving parts to break or require sealing, which makes for more crevices for liquids to linger in. No thanks. A simple solid double walled robust Ti that fits great in the hand and cup holder. Just feels safe & reliable.

I purchased a pair of these along with titanium filters from the same manufacturer for making pour over coffee as a camp setup for two people. Not many vacuum insulated titanium mugs out there! They are light and hold their temperature for quite some time. The filters fit and function. Overall, I will give four stars for lack of thought in that the lids do not offer some sort of option to sip without removing them entirely. Too easy to drop in the sand between drinks. Additionally, if the lids would work with the filters inside, they would pack far more efficiently.... just ideas. It is the little things, when it comes to the best outdoors gear.

Light, durable, well made. It does the job.

Great size, light and well Made, HOWEVER, this is not insulated and the heat of the liquid will pass through the walls of the cup. When using a hot liquid the lid will stay sealed closed. Great looking Ti cup!

This thing is made of titanium. It is very light and it’s double wild so hot or cold can go into it. It won’t burn your hands or in the cold situation. It won’t sweat and make a wet spot on the table top and won’t make a ring on the table if it’s a good wood table, it’s rugged tough and it’s good for camping.

The 350mL cup seems to be well-made, but the outside still gets too hot to hold with bare hands. Since there is no handle, you're forced to hold onto the outside. You're probably not going to get burned and the description does say that, but it still has to be treated like a single-wall cup and single-wall cups have handles. If this one had a handle, it would be great and wouldn't have been returned. For the price it underperforms.