The complete guide
Insulated Tumbler Buying Guide
What an insulated tumbler does
An insulated tumbler is a cup with two steel walls and a vacuum between them. Heat cannot cross a vacuum easily. So a cold drink stays cold and a hot one stays hot for hours, and the outside of the cup stays at room temperature.
This one holds 1.2 litres. That is enough water for a long morning at a desk, a shift on site or a drive across town without a refill. The maker rates it to keep drinks cold for 8 hours and hot for 6 hours.
Why pick a tumbler with a handle and straw
A big cup is hard to hold by the body when it is full. The handle lets you carry 1.75 kg of water and ice in one hand. The straw lets you drink without lifting or tipping the cup, which matters when you are typing or driving.
The lid gives you a choice:
- Straw opening for water, iced coffee and cold drinks.
- Sip opening for hot coffee and tea. Never drink a hot drink through a straw.
Two reusable straws come in the box. Keep one at work and one at home, or just have a spare.
Will it fit in your car
The cup narrows to 7.4 cm at the base. The maker says it fits most car cup holders, and the handle sits above the holder. Narrow or shallow holders can still be a problem, so measure yours if you are not sure.
Height is the other check. The cup is 25 cm tall with the lid on. That is too tall for some coffee machines and fridge water dispensers. Measure the gap before you buy if you plan to fill it there.
Size: 1.2 litres or something smaller
The 1.2 litre size suits people who want one fill to last most of the day. It is a big cup, and it weighs 558 g empty.
If you mostly drink coffee, a 1.2 litre cup is more than you need, and a smaller travel mug will be lighter in a bag. If you want to drink more water, the big size is the point. You can see how much you have left without counting bottles.
Care and cleaning
The maker lists the cup and lid as dishwasher safe. A few habits keep it working well:
- Pull the small silicone straw seal out of the lid now and then and rinse under it.
- Run a straw brush through the straws, or put them in the cutlery basket.
- Let the lid dry fully before you screw it back on, so it does not smell.
- Never put it in the microwave. It is steel.
Using it the right way
Stand it upright when it has a drink in it. The lid is screwed on and seals well upright, but the maker warns that the straw seal can leak if the cup is turned over or laid on its side. Do not throw it in a bag full.
For the longest cold time, fill it with ice first and then water, and keep the lid closed. For hot drinks, pre-warm the cup with hot water for a minute, tip it out, then pour in your coffee.
We suggest still drinks only. The maker does not say anything about fizzy drinks, and gas builds pressure under a screw-on lid.
Quick specs
| Feature | Detail |
|---|---|
| Capacity | 1.2 litres (40 US fl oz) |
| Height | 25 cm |
| Mouth | 9.9 cm across |
| Base | 7.4 cm across |
| Weight | 558 g empty |
| Material | 18/8 stainless steel, powder-coated outside |
| Lid | Screw-on, BPA free, sip and straw openings |
| In the box | Tumbler, lid, two straws |
| Hot / cold | 6 hours / 8 hours (maker's figures) |
| Dishwasher | Yes |
| Microwave | No |
| Colour | Indigo Black |
Delivery and returns
Orders ship within 2 working days and arrive within 7 working days anywhere in New Zealand by tracked courier. Delivery is free on orders of $100 or more, otherwise a flat $25.
You have 15 days from purchase to return it if you change your mind, in the original packaging. Your rights under the Consumer Guarantees Act 1993 are not affected.