The Boundless Voyage Titanium Cup (Ti3026D) is a 450 ml single-wall titanium cup with folding handles and a lid. It weighs 85 g, and because it’s a single wall, it goes straight on the stove: boil water in it, then drink from it. I paid $24 for it.
What’s in the box
A 450 ml cup made from 99.8% titanium, with “Boundless Voyage 450ML Titanium” laser-marked on the side. Two wire handles fold flat against the body when you pack it, and the lid sits inside the rim. It comes in a drawstring storage bag and weighs 85 g with the lid.
What we like
- Only 85 g with the lid
- Goes straight on the stove
- Lid makes it boil faster
- Handles fold flat to the side
- No rust, no metal taste
- Comes with a storage bag
What we don’t
- Too hot to hold without handles
- Lid can leak when it's full
- 450 ml: one coffee or one meal
Quick Specs
| Spec | Details |
|---|---|
| Brand | Boundless Voyage |
| Model | Ti3026D |
| Capacity | 450 ml |
| Material | 99.8% titaniumSingle wall |
| Colour | Titanium |
| Weight | 85 gwith lid |
| Size | Ø 9 × 9.2 cm |
| Included | LidStorage bag |
On the stove
Being single-walled is what makes this cup more than a mug. It sits straight on a camp stove or over a fire, so you can boil water for a coffee, a tea or a dehydrated meal in it and drink or eat from the same cup. The thin titanium heats up quickly, and with the lid on the water boils faster and nothing falls in. 450 ml is enough for a decent coffee or the water for one freeze-dried meal.
Titanium doesn’t rust or corrode, even with coffee in it, and it adds no metallic taste, so your drink tastes the way it should. The thin metal keeps the weight down, but it’s strong enough that the cup holds its shape.
Hot to hold
The flip side of a single wall is that the whole cup gets hot the moment boiling water goes in. Pick it up by the folding handles, or use a titanium pot gripper to lift it off the stove, and let a drink cool a little before you sip from the rim.
The lid isn’t a seal, either: it can leak a little when the cup is full, so don’t carry a full cup around camp with the lid on and expect it to stay dry.
Packing it
At 85 g it’s one of the lightest things in our camp kitchen. The handles fold flat against the side, so it slips into a pack or nests inside a bigger pot, and the storage bag keeps it from rattling.
Titanium mug comparison
We’ve tested several titanium mugs and cups. The 420 ml Boundless Voyage mug weighs almost the same, has a lid with a lifting tab and fits a 110 g gas canister inside. The 250 ml mug is lighter but small, and the Ti Artisan nestable cup comes in four sizes that stack inside each other. Our titanium cookware guide compares them all.
This one 450 ml Cup |  250ML Mug |  420 ml Mug |  Ti Artisan Cup | |
|---|---|---|---|---|
| Lid | Yes | Yes | Yes | Yes |
| Model | Ti3026D | Ti3051D | Ti3025D | HR-Ta8307-450 |
| Size | 90 × 92 mm | 84 × 87 mm | 85 × 87 mm | 86 × 97 mm |
| Capacity | 450 ml | 250 ml | 420 ml | 450 ml |
| Weight | 85 g | 70 g | 87 g | 92 g |
| Price paid | $24 | $26 | $26 | $30 |
| Our score | 8.9 | 9.1 | 9.2 | 9.1 |
Conclusion: Boundless Voyage Titanium Cup with Lid (450 ml)Conclusion
The Boundless Voyage 450 ml titanium cup weighs 85 g, goes straight on the stove and boils water quickly with the lid on, so it’s a mug and a small pot in one. The whole cup gets very hot, so handle it by the folding handles or with a pot gripper, and the lid can leak a little when it’s full. For a light kit where every gram counts, it’s a very useful cup. I paid $24.
A mug and a small pot in one, at 85 g.
It goes straight on a stove or a fire and boils water faster with the lid on. The whole cup gets very hot, so pick it up by the folding handles, and the lid can leak a little when it's full.
- Hikers
- Bikepackers
- Solo trips
Yes, if you count grams. I paid $24 for an 85 g cup that's also a small pot on the stove. Just handle it with care when it's hot.
